The purpose of this research is to test and analyze influence of Store Environment, Sales Promotion, and Perceived Value to Purchase Decision to Customer Ramayana in East Jakarta. The research design used in descriptive research and causality research. The sampling in the study used 206 respondent with purposivesampling. The research data is processed with IBM Statistic 22.0 as a tool. This study uses multiple regression analysis. The result showed that Store Environment, Perceived Value influence Purchase Decision, but for Sales Promotion not influence to Purchase Decision. Overall, independent variables affect Loyalty simultaneously.

The purpose of this study was to examine and analyze the influence of waterpark image through delight and service quality to customer loyalty on Waterboom Lippo Cikarang customers in Jabodetabek. This research is a descriptive study and causal relationship. The sample in this study were 200 respondents. This research method is SEM analysis with Warp PLS tools. The results of this study indicate that waterpark image, delight, and service quality have a significant and positive influence on customer loyalty. Whereas indirectly waterpark image influences customer loyalty through delight and service quality.

The purpose of this study was to determine the relationship of word of mouth with brand image, brand loyalty, brand preference and brand leadership of Miniso customers in West Jakarta.The sampling used in this study is nonprobability sampling with a purposive sampling method and will require 116 respondents. Only certain samples that meet the criteria and can be used as samples. For this study, the SPSS program is used to determine the effect of all the independent variables above on the dependent variable. The statistical method in this study is multiple regression. Research shows that word of mouth for brand image, brand loyalty, brand preference and brand leadership of Miniso customers in West Jakarta.

The aim of this research is to discover the influence of E-distrust, E-negative beliefs, E-self inefficacy, E-logistic ease, E-convenience, E-enjoyment on Satisfaction, and to discover the influence of Satisfaction on Loyalty. The design of this research is made with descriptive research and causal research. This research is aquantitative study by taking population from consumers who have accounts and shopping experience at Berrybenka website. The samples are taken from the population using purposive sampling method through questionnaires. Total of samples used in this study are 208 respondents. This study uses structural equation model (SEM) with the help of SmartPLS 3.0 analysis program. The results of this research are E-distrust, Enegative beliefs, E-self inefficacy, E-logistic ease, E-enjoyment has impact towards Satisfaction, E-convenience has no impact to Satisfaction, and Satisfaction has impact towards Loyalty.

This study aims to determine the influence of personal service and functional service on word-of-mouth intention from Sushi Tei’s customer in DKI Jakarta through customer satisfaction as mediating variable. The design that used in this research were descriptive research and causality research, in which variabels were measured with 6 points likert scale. The technique that used in this reseach is non-probability sampling and used 241 respondents who fit the citeria. This research data is processe by using Structural Equation Modeling - Partial Least Square. The results of this calculation show that personal service and functional service through customer satisfaction as mediating variable have an influence on word-of-mouth intention on Sushi Tei’s customers in the DKI Jakarta area.  Personal service and functional service have an influence on word-of-mouth intention on Sushi Tei’s customers in the DKI Jakarta Area. Personal service and functional service has effect on word-of-mouth customer satisfaction, enabling companies that focus on their service to better ensure customer satisfaction to get word-of-mouth intention.