Noersidiq, Azhary, Yetti Marlida, Mardiati Zain, Fauzia Agustin, Fahrullah Fahrullah, and Vebera Maslami. 2023. “Effect of Saccharomyces Cerevisiae and Cobalt in Ammoniated Oil Palm Trunk to In-Vitro Digestibility of Dry Matter, Organic Matter and Crude Protein”. Jurnal Biologi Tropis 23 (2):121-25. https://doi.org/10.29303/jbt.v23i2.4739.