Solo, Antonius, 		Ganda Putra, G.P., AND 		Suparthana, I Putu.
" The Effect of Addition of Bread Yeast and Time of Fermentation on the Characteristics of Vinegar from Palm Sap (Borassus  flabellifer Linn)" <em>Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology)</em> [Online], Volume 6 Number 1 (11 May 2020)