Anggara Prathama, Zevana Prima, 		Suprapta Winaya, I Nyoman, AND 		Tenaya, I Gusti Ngurah Putu.
" Pengaruh Variasi Total Solid Limbah Kulit Kakao Terhadap Volume Biogas Digester Termofilik" <em>Teknik Desain Mekanika</em> [Online], Volume 9 Number 1 (1 January 2020)