Michelle Kurniadjie, Crysantina R., and Kullada Phetvaroon. 2019. “Importance-Performance Analysis (IPA) of Digital Information Quality: The International tourists’ Perspective”. Journal of International Studies, Prince of Songkla University 9 (2):65-85. https://so03.tci-thaijo.org/index.php/jis/article/view/232031.