Tocharus, C., R. Jeenapongsa, T. Teakthong, and Y. Smitasiri. “Effects of Long-term Treatment of Butea superba on Sperm Motility”. Asian Health, Science and Technology Reports, vol. 13, no. 2, June 2005, pp. 11-17, https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2414.