Neungpanich Sinchaisri, Dumre Roongsook, and Narong Chungsamarnyart. “Insecticidal Activity of Plant Crude-extracts on Diamondback Moth Larvae”. Agriculture and Natural Resources, vol. 25, no. 5, Dec. 1991, pp. 106-10, https://li01.tci-thaijo.org/index.php/anres/article/view/242019.