Berampu, Sindi, and Darmilisani Darmilisani. “Analysis of Work Environment, Work Motivation, and Job Training on Work Productivity at PT OCS Global Services”. EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis 13, no. 4 (September 10, 2025): 3229–3244. Accessed September 19, 2025. https://jurnal.unived.ac.id/index.php/er/article/view/8325.