Chumairoh, Eva Trisnawati, and Trianggoro Wiradinata. “The Impact of Leadership, Motivation and Discipline on Employee Performance (a Study on Employees of PT Surabaya Marine)”. KnE Social Sciences 5, no. 5 (March 22, 2021): 388–394. Accessed October 19, 2021. https://knepublishing.com/index.php/KnE-Social/article/view/8825.