Jiwyam, Wirat, and Nisarat Tippayadara. 2009. “Gut Content Analysis of Pangasiid Catfish, Helicophagus Waandersii Bleeker, 1858 from the Mekong River: A Preliminary Report”. Journal of Fisheries and Environment 33 (1). Bangkok, Thailand:1-8. https://li01.tci-thaijo.org/index.php/JFE/article/view/81324.