Panyaem, Kosin, and Chawalee Na Thalang. “Management Guidelines of Thai Restaurant to Promote Food Tourism for Thai Elderly in Bangkok”. Dusit Thani College Journal 17, no. 2 (August 30, 2023): 92–107. Accessed May 26, 2024. https://so01.tci-thaijo.org/index.php/journaldtc/article/view/269360.