Worapani, Thiraya, and Pongpol Worapani. 2018. “Survey of Decision-Making Factors and Behaviors on Cosmetics Purchasing of People in Tak Province”. Thai Food and Drug Journal 24 (3). Nonthaburi, Thailand:38-48. https://he01.tci-thaijo.org/index.php/fdajournal/article/view/140272.