Rangsin, Wannapa, Nontawith Areechon, and Ruangvit Yoonpundh. 2012. “Digestive Enzyme Activities During Larval Development of Striped Catfi Sh, Pangasianodon Hypophthalmus (Sauvage, 1878)”. Agriculture and Natural Resources 46 (2). Bangkok, Thailand:217-28. https://li01.tci-thaijo.org/index.php/anres/article/view/242815.