สิงห์คำ ว., and สุขเสริม ธ. “A Study of Crayfish’s Consumer Demand in Mueang District, Ubon Ratchathani Province”. Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University, vol. 14, no. 3, Dec. 2019, pp. 145-53, https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/237159.