Kaewploy S, Joompha W, Thongnueakhaeng P. Historical Tourism Itinerary Planning in Songkhla Province Using Heuristic Method . JQMA [Internet]. 2026 Mar. 26 [cited 2026 Aug. 17];22(1):253-68. Available from: https://jqma.ukm.my/index.php/jqma/article/view/161