Srithong, Saranya, Komsit Kieanwatana, Angsumalin Jamnongchob, and Kingkanok Saowapawong. “Educational Tourism Needs for Family Tourist Segment In Nakhonnayok Province”. Academic Journal of Thailand National Sports University 10, no. 2 (May 1, 2018): 145–160. Accessed May 18, 2024. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/248625.