Nugroho, T. (2007) “ PERAN PENYULUH PERTANIAN DALAM PELESTARIAN ALAM”, Jurnal Ilmu-Ilmu Pertanian, 3(2), pp. 100–111. Available at: https://jiip.polbangtanyoma.ac.id/index.php/jiip/article/view/243 (Accessed: 8 February 2025).