Suthinee Boonananwong, Boonsong Kongkathip, and Ngampong Kongkathip. “Synthesis and Biological Evaluation of 3,16,20-Polyoxygenated Steroids of Marine Origin and Their Analogs”. Agriculture and Natural Resources 42, no. 3 (September 30, 2008): 531–542. accessed October 13, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/244481.