This research was conducted with the aim of knowing the effect of Leadership Style and Work Motivation on Work Discipline of Employees of PT Nata Bersaudara Sejahtera. The method used in this research is a survey with a quantitative approach. Data collection techniques were obtained directly through questionnaires distributed to 89 respondents who were employees of PT Nata Bersaudara Sejahtera. The technique used in this research is path analysis. The results of the study indicate that: (1) Leadership style has a positive and significant effect on work motivation for employees of PT Nata Bersaudara Sejahtera; (2) Leadership style directly has a positive but not significant effect on the Work Discipline of PT Nata Bersaudara Sejahtera employees; (3) Work Motivation has a direct positive and significant effect on the Work Discipline of PT Nata Bersaudara Sejahtera employees; (4) Leadership style has a positive and significant effect on work discipline through the work motivation of employees of PT. Nata Bersaudara Sejahtera.

These blind people still have difficulties in carrying out their activities, especially in terms of mobility in society. This is of course due to the lack of facilities and infrastructure that can support blind people in carrying out their daily activities. One of the assistive devices commonly used is a blind cane. With this stick, blind people are quite helped, especially when walking, but the conventional cane has limitations, one of which is the reach is too short. Thus, in this study, a concept for walking aids for blind people was developed by designing a new device that can cover the limitations of conventional canes. The tool is designed to utilize microcontroller technology with a minimum Arduino uno system, ultrasonic sensor HC-SR04, and DFPlayer Mp3 Mini module. The results showed that the designed tool can detect a maximum distance of 80 cm and can make a sound when the ultrasonic sensor is blocked.