Wahjuningsih, Sri, et al. “Extract of Cincau (Mesona Palustris B.) Supplementation in Semen Extender Improves Boer Goat Sperm Cryopreservation”. Journal of Advanced Veterinary Research, vol. 11, no. 4, Oct. 2021, pp. 247-53, https://advetresearch.com/index.php/AVR/article/view/762.