Kraikrutree, K., V. Thammakitipob, and P. Khemthong. “Occupational Standard for Veterinary Assistant (small Animal)”. Kasetsart Journal of Social Sciences, vol. 41, no. 2, Feb. 2018, pp. 455–461, https://so04.tci-thaijo.org/index.php/kjss/article/view/232619.