Phetburi, W., S. Weerasuk, S. Nualsut, and S. Promkum. “Factors Affecting Vegetarian Intention of Consumers in Hat Yai District, Songkhla Province”. Economics and Business Administration Journal Thaksin University, vol. 14, no. 2, Apr. 2022, pp. 129-42, https://so01.tci-thaijo.org/index.php/ecbatsu/article/view/244984.