“The Influence of Discipline and the Work Environment on Teacher Productivity at SMPN Paguyaman District of Boalemo Regency”. Jurnal Ilmu Manajemen dan Bisnis 9, no. 2 (Januari 27, 2021): 1–7. Diakses April 3, 2026. https://journals.ubmg.ac.id/index.php/JIMB/article/view/160.