Vuong, T., L. Tran, and D. Luu. “PROPERTIES OF DIGESTIVE ENZYMES FROM VISCERAL ORGANS OF TRA (PANGASIUS) CATFISH”. VNUHCM Journal of Science and Technology Development, Vol. 14, no. 4, Dec. 2011, pp. 34-43, doi:https://doi.org/10.32508/stdj.v14i4.2005.