Sakhong, Denpong, Thevin Vongpralub, Suporn Katawatin, and Saksiri Sirisathien. 2013. “Ultrasound-Guided Transvaginal Follicular Aspiration and Development of Vitrified-Thawed Thai Indigenous Beef Cattle (Bos Indicus) Oocytes After in Vitro Fertilization”. The Thai Journal of Veterinary Medicine 42 (4):509-16. https://he01.tci-thaijo.org/index.php/tjvm/article/view/10711.