Rungruangsak, Janyaporn, Somchai Sangkaphet, Kakanang Buranaamnuay, Panupan Pongpeng, and Padet Tummaruk. “Boar sperm production in a tropical environment”. The Thai Journal of Veterinary Medicine 51, no. 2 (February 1, 2021): 213–220. accessed September 15, 2026. https://he01.tci-thaijo.org/index.php/tjvm/article/view/247796.