This study aims to implement android-based learning media in mathematics basic concepts courses on student achievement, and the effectiveness of android-based learning media in mathematics basic concepts courses on student achievement at PGMI Nurul Jadid University. This research uses a quantitative research approach. The data collection is done through documentation and tests. The determination of the sample of this research was carried out by random sampling technique which included the fourth-semester PGMI Study Program students. While the data analysis in this study uses paired sample t-test analysis techniques. Based on the results of data analysis, it can be concluded that t-count = -18,378 with significance = 0,000 < 0.01. Thus, it can be stated that H1 is accepted and H0 is rejected, so it can be concluded that the android-based learning media on the subject of mathematics basic concepts are convincingly effective in improving student achievement.

Vehicle Routing Problem (VRP) is the problem for finding optimal routes in the distribution system, and this problem needs attention because it can improve distribution performance. One of the problems in VRP is the Vehicle Routing Problem for Perishable Goods (VRPfPG). This issue addresses VRP for products that are rapidly losing quality and perishable. This paper attempts to review the Vehicle Routing Problem for Perishable Goods (VRPfPG). A systematic review has been carried out on fifty-nine (59) published papers from 2001 to March 2020. The optimization methods in this review were classified into single and multi-objective problems. In addition, the review was also conducted based on the objective function. The results show the metaheuristic algorithm to be a popular optimization method for solving single and multi-objective problems. Further, the results also show that minimizing the total cost distribution to be the objective function that was often used by researchers. Finally, future studies are suggested to explore a more comprehensive investigation in the VRPfPG.

Pesantren education essentially grows and develops based on religious motivation. The purpose is to streamline broadcasting efforts (da’wah) and practice of Islamic teaching. In its implementation, it undertook the processn of fostering knowledge, attitudes and skills thatbconcern the religious aspect. So the formation of a virtuous man (al akhlaqul karimah)is in line with a consistent religious practice or istiqomah. Therefore , pondok pesantren has to print the true human expert in the field of religion (tafaqquh fiddin, transfer knowledge to society and create good person. From there embedded the formation of good morality is the power of the soul from within that encourages people to do good and prevent bad deeds, enjoin the ma’ruf and prevent the evil. From here the behavior of good behavior (akhlaq al-karimah) which will become the character of his personality. Related to the formationof personality, there is the problem of students who become measurement of success or not about the coaching personality of santri.

Tulisan ini memuat tentang memotret interaksi nilai-nilai budaya dalam proses dakwah. Budaya dan manusia tidak bisa dipisahkan karena manusia secara sunnatullah memiliki potensi untuk melahirkan budaya. Dalam konteks itulah, maka proses dakwah sangat mustahil bisa dijauhkan dari budaya yang berkembang di tengah masyarakat. Interaksi budaya dan dakwah berada dalam memposisikan manusia sebagai subjek dan objek dakwah. Agama hadir bukan untuk menghilangkan budaya yang telah diproduk manusia, tapi justru sebaliknya memberi penguatan dengan nilai-nilai agama, sehingga lahirlah interaksi budaya dan kemudian membentuk suatu model budaya yang Islami yakni; suatu model budaya yang sejalan dengan nilai dan prinsip-prinsip ajaran agama, hal ini sejalan dengan pesan Allah SWT. yang terdapat pada QS. al-‘Araf[7]:199.

Nowadays, consumers are not only looking for good tastes, but they are also looking for a cosy cafe atmosphere and satisfying service. The high competition in the culinary business has forced entrepreneurs to offer different concepts to attract customers. This study will give an account of analyzing the role of cafe atmosphere, service quality and customer satisfaction in customer purchase intention in thematic cafe in Surabaya. This study involved 150 respondents with PLS-SEM was used to analyze the data. The analysis shows that all of the hypotheses proposed are supported. The results of this study also present that, compared to service quality, the cafe atmosphere has a stronger effect on customer satisfaction, leading to repurchase intention of the customers.