Suardana, I Wayan, 		Jagadita, I Wayan Rada, AND 		Antara, I Nyoman Semadi.
" The Effect of Extracellular Protein Isolated from Streptococcus bovis 9A as A Biopreservative in Beef Meat by Meansof pH Change" <em>Journal of Veterinary and Animal Sciences</em> [Online], Volume 1 Number 2 (11 July 2018)