Ginting, Kincar Ginanta, Khamo Waruwu Khamo, and Mella Yunita. “Pengaruh Pengawasan Dan Palaksanaan Standar Operasional Terhadap Kualitas Kerja Karyawan PT Nutri Inti Prima Perkasa Medan”. Journal of Indonesian Scholars for Social Research 2, no. 2 (July 29, 2022): 107–119. Accessed April 20, 2025. https://ojs.ycit.or.id/index.php/JISSR/article/view/29.