Lumban Siantar, Petrus Bekam. “THE INFLUENCE OF WORK ENVIRONMENT ON EMPLOYEE PERFORMANCE PRODUCTIVITY AT WARTEG RIZKY 24 HOUR : Lingkungan Kerja”. Journal for Management Student (JFMS) 3, no. 2 (April 29, 2023): 34–38. Accessed July 22, 2024. https://journal.unsika.ac.id/index.php/jfms/article/view/11509.