Leelasiri, K., T. Jivapaisampong, P. Ruangrairatanaroj, and A. Supasamsathom. “Production of Purified Chick Embrio Cell Rabies Vaccine”. Journal of Health Science of Thailand, vol. 2, no. 2, June 1993, pp. 120-5, https://thaidj.org/index.php/JHS/article/view/6574.