The purpose of this study is to analyze and find out how the influence of human resource development, interpersonal relationships, leadership, and work motivation on employee performance. This research was conducted at PT. XYZ with a sample population of 60 employees. The sampling technique used in this research is probability sampling using the Slovin technique. This research uses a quantitative method with Structural Equation Modeling (SEM) analysis technique with Smart PLS Software. Based on the test results, it is found that human resource development has a positive and significant effect on employee performance. Interpersonal relationships have a positive and significant influence on employee performance. Then, leadership also has a positive and significant influence on employee performance. Furthermore, work motivation also has a positive and significant influence on employee performance
Pratama et al. (Wed,) studied this question.