Winaya, I Nyoman Suprapta, 		Tenaya, I Gusti Ngurah Putu, AND 		Putrawan, I Made Agus.
" Potensi Biogas dari Substrat Bio-Limbah Perhotelan" <em>Jurnal Energi Dan Manufaktur</em> [Online], Volume 8 Number 1 (25 July 2015)