Rahareng, Shela. “The Impact of Implementing Standard Operating Procedures and Supervision on Employee Performance”. BJRM (Bongaya Journal of Research in Management) 4, no. 1 (April 30, 2021): 26–33. Accessed May 4, 2024. http://ojs.stiem-bongaya.ac.id/BJRM/article/view/252.