This study aims to determine the impact of the eticketing application system on bus transportation for the peoples of Bandung. To support the research, the method used was qualitative. The results show that there are some positive impact on the implementation of e-ticketing system, one of which is to increase public interest in public transport in order to reduce traffic jam that often occurs during this time. This is because the implementation of e-ticketing systems on public transportation provides convenience and comfort in ticket booking services, both for the peoples and for the providers of transportation services. Of course the convenience and comfort can encourage peoples to use public transportation in carrying out their daily activities.

Universities have incorporated e-learning into their educational structures because of the unanticipated transition from conventional learning to digital and hybrid learning methods to the closure of educational facilities during the COVID-19 pandemic. This study aims to ascertain how e-learning influences students' satisfaction at private universities and to develop a marketing strategy to keep institutions of higher learning competitive throughout the COVID-19 or similarly disrupting events. In the study, we utilise a quantitative descriptive method. Collecting data was done by distributing e-questionnaires to students at a private university in Bandung. The sampling technique used random sampling with 245 respondents. The data was subjected to numerous linear regression analyses using SPSS. ICT, ESQ, and EIQ are the study's dependent variables, and e-learning is the study's independent variable. The findings indicate that all variables influence and significance of e-learning and students' satisfaction with 65.9%, which can enhance learning outcomes in private universities.

This study aims to carry out a bibliometric analysis on Islamic marketing using the VOSviewer program. This study uses a quantitative descriptive method. The data used in this study are search results based on the keyword "Islamic Marketing" sourced from Google Scholar using publish or perish software. From the search results, we found 1000 articles published in the 2018-2022 range. The results show that research on Islamic marketing increased in 2019 and 2020 but decreased significantly in 2022. In conclusion, this study is needed to demonstrate the significance of undertaking bibliometric analysis, particularly in the area of Islamic marketing. It is expected that this study will serve as a model for future research in terms of conducting and identifying research topics, particularly in the field of Islamic marketing.

This paper introduced a design of a heat exchanger to get an optimum heat transfer enhancement technique that can be used for the production of lanthanum oxide (La2O3). The shell and tube type was selected since this type is one of the effective types for making excellent heat transfer, which was then compared to the Tubular Exchanger Manufacturers Association (TEMA) standard to obtain the dimensional specifications of the heat exchanger device. Several parameters were calculated to evaluate the performance of the designed heat exchanger. Numerical calculation obtained from the heat exchanger containing 138 tubes can be used to maintain the temperature in the reactor (prospective temperature can change from 40 to 60℃ with rapid heating) using heating liquid (controlling by transferring heat from 100 to 70℃) with the effective value of 96%. This study can be used as a reference for supporting information in the current issue of the need for the large production of La2O3 particles.

The purpose of this study is to determine and analyze how big the role of prefabricated materials in increasing construction efficiency in architecture, especially in the post-pandemic era. This research was conducted using qualitative methods because it relates to the views of researchers regarding to the relationship between prefabricated materials and post-pandemic phenomenon. The results obtained from this research are the application of prefabricated material technology that can help the construction process in architecture to be faster in several aspects. The presence of prefabricated materials in architecture, especially post-pandemic, can make the construction process faster in terms of time and installation. The presence of prefabricated materials in architecture, especially post-pandemic, can make the construction process faster in terms of time and installation. Therefore, the use of prefabricated materials is very well applied both during the pandemic and post-pandemic because it can break down the processing time faster so as to minimize the crowd of workers in the field. The final result of this research is to find out how big the role of prefabricated materials in architecture is to make work in the field more efficient and minimize crowds during the pandemic or post-pandemic period. We hope that this research can be useful for the architectural world regarding the advantages of applying prefabricated materials during the pandemic and post-pandemic era.