Adi, R Kunto. 2008. “PENYEBARAN TEKNOLOGI KONSERVASI LAHAN KERING MELALUI PEMUKA PENDAPAT DI KABUPATEN BANTUL PROPINSI DAERAH ISTIMEWA YOGYAKARTA (THE DISSEMINATION OF DRYLAND CONSERVATION TECHNOLOGY BY OPINION LEADERS IN BANTUL DISTRICT, YOGYAKARTA)”. Jurnal Ilmu-Ilmu Pertanian 4 (2):99-108. https://jiip.polbangtanyoma.ac.id/index.php/jiip/article/view/226.