The aim of this research is to determine the influence of brand image and product differentiation on sales at PT Aerofood Indonesia Kualanamu Branch and the extent to which product differentiation influences customer satisfaction at that location. Quantitative methods are applied. The population of this research is all customers who have used products and services from PT Aerofood Indonesia Kualanamu Branch. 110 respondents were given a questionnaire to fill out in order to do this. The findings of this research show that at PT Aerofood Indonesia Kualanamu Branch, product differentiation has a good and significant influence on customer satisfaction. However, at PT Aerofood Indonesia Kualanamu Branch, brand image does not have a real impact on customer satisfaction, either positively or negatively. At PT Aerofood, customer satisfaction and sales are significantly influenced by product differentiation and brand image.

This study aims to investigate how responsibility and commitment can affect employee performance. This study's research technique uses qualitative methods, or more specifically, observation techniques used over the course of a month in the North Sumatra Governor's office. The study's findings indicate that responsibility and dedication play a big part in employee performance since they affect job productivity inside the organization, which in turn affects how the public perceives the organization. Therefore, it can be claimed that the organization's function may help each employee become more committed and responsible. which will eventually be able to offer the public the greatest service.

The research aims to analyze the impact of implementing Islamic Business Ethics on enchancing employee perfomance at CV. Citra Medan Printing. The researcj methodology employed is descriptive qualitative research. Data ware gathered through the researcher’s field observations during an internship at the company and through interviews with the owner of CV. Citra Medan. The result of this studi demonstrate that the implementation of Islamic Business Ethics at CV. Citra Medan Printing has a positive impact on employee perfomance. Employees engaged in business practices aligned with islamic values tend to be more motivated, exhibit higher commitment levels and show improvements is productivity. This study provides recommendations for similar companies to consider implementing Islamic Business Ethics aas a strategy to boost employee perfomance and fortify the company’s image. Furthermore, this research contributes to a deeper understanding of how Islamic Business Ethics can be applied in the context of modern business.