Aiyaranoi, K., N. Boonchalaew, N. Chawnan, S. Chotiku, and J. Kampa. “Prevalence of Feline Immunodeficiency Virus & Feline Leukemia Virus in Clinically Healthy Cats in Khon Kaen Province”. The Thai Journal of Veterinary Medicine, vol. 48, no. 1, Mar. 2018, pp. 117-21, https://he01.tci-thaijo.org/index.php/tjvm/article/view/117356.