Valencia, Vania, Purnama Yanti Purba, Chery Chery, Yudha Hotfriendi Nababan, and Novi Rachma Herawati. “Analisis Kinerja Karyawan PT.Sumatera Inti Karet”. Management Studies and Entrepreneurship Journal (MSEJ) 5, no. 2 (November 19, 2024): 5629–5641. Accessed July 7, 2025. https://journal.yrpipku.com/index.php/msej/article/view/5101.