Kraikrutree, K. ., V. . Thammakitipob, and P. khemthong. “FUNCTIONAL ANALYSIS AND OCCUPATIONAL STANDARD FOR VETERINARY ASSISTANT (SMALL ANIMAL)”. Journal of Humanities and Social Sciences Thonburi University, vol. 13, no. 2, May 2019, pp. 103-14, https://so03.tci-thaijo.org/index.php/trujournal/article/view/192712.