Aimsiriwong, P., Phromrak, N., Pongwiritthon , K., & Teerapaporn, J. (2026). Marketing Mix Factors Affecting Tourist Decision-Making Behavior in Nan Province. International Journal of Development Administration Research, 9(1), 21–32. retrieved from https://so02.tci-thaijo.org/index.php/ijdar/article/view/283830