Suphaphon, W., and C. Agmapisarn. “Food-quality factors and attitudes that influence inbound tourist’s perception of street food safety. Case study: Khao San Road, Bangkok”. WMS Journal of Management, vol. 8, no. 1, Jan. 2019, pp. 10-23, https://so06.tci-thaijo.org/index.php/wms/article/view/168242.