Grudpan, J., and K. P. Pradermwong. “Heavy Metal Contamination in Indochinese Molluscivorous Catfish (Helicophagus Leptorhynchus Ng & Kottelat, 2000) from Mun River Basin, Ubon Ratchathani Province”. Journal of Fisheries and Environment, vol. 40, no. 1, Jan. 2016, pp. 39-51, https://li01.tci-thaijo.org/index.php/JFE/article/view/80451.