Watthanapong , W. and Papattha, C. (2022) “Attitudes Affecting Healthy Clean Foods During the Coronavirus 2019 Epidemic in Bangkok”, RMUTP Research Journal Humanities and Social Sciences. Bangkok, Thailand, 7(1), pp. 34–49. available at: https://so05.tci-thaijo.org/index.php/rmutphuso/article/view/258229 (accessed: 28 September 2026).