Pramana, Komang Suteja, 		Setiyo, Yohanes, AND 		Aviantara, I Gst. Ngr. Apriadi.
" Optimalisasi Proses Fermentasi Urin Sapi" <em>Jurnal BETA (Biosistem dan Teknik Pertanian)</em> [Online], Volume 7 Number 1 (28 October 2018)