Muhamad Ilyas Fauzi. “Optimalisasi Leadership, Organizational Culture and Work Motivation : And Impact To Employee Productivity At PT. Telkom Indonesia Sukanumi (Studi Kasus Pada PT. Telkom Indonesia Sukabumi)”. Jurnal Adijaya Multidisplin, vol. 2, no. 04, September 2024, hlm. 725–739, https://e-journal.naureendigition.com/index.php/jam/article/view/1544.