Phochayavanich, R. ., and W. Khrueanet. “Comparison of Frog Diversity Between Paddy Fields With Chemical and Non-Chemical Use in Nong Khai Province, Thailand”. Agriculture and Natural Resources, vol. 54, no. 1, Feb. 2020, pp. 9-16, https://li01.tci-thaijo.org/index.php/anres/article/view/240251.