Sandriani, P., & Harahap, K. (2023). The Effect Of Work Discipline And Work Supervision On Work Productivity Of BPJS Ketenagakerjaan Employees In North Medan Branch. Jurnal Sosial Sains Dan Komunikasi, 1(02), 39–52. Retrieved from https://jurnal.seaninstitute.or.id/index.php/sosak/article/view/97