et. al., Patcharin Jungprawate,. “Factors Affecting Health Tourism Promotion for the Elderly in Nakhon Nayok Province, Thailand”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 8 (April 20, 2021): 2818–2824. Accessed December 22, 2024. https://turcomat.org/index.php/turkbilmat/article/view/4043.