HARIADI, Sunarru Samsi. SERTIFIKASI, DISIPLIN, DAN PRODUKTIVITAS KERJA PENYULUH PERTANIAN (CERTIFCATION, DISCIPLINE, AND WORK PRODUKTIVITYOF FIELD EXTENSION WORKERS). Jurnal Ilmu-Ilmu Pertanian, [S. l.], v. 6, n. 1, p. 1–9, 2010. Disponível em: https://jiip.polbangtanyoma.ac.id/index.php/jiip/article/view/202. Acesso em: 13 may. 2025.