Pongamponkaiwan, Sudarat, and Adisorn Leelasantitham. “The GAP Model of E-Government Service in Thailand E-Tourism”. ECTI Transactions on Computer and Information Technology (ECTI-CIT) 14, no. 1 (October 26, 2019): 11–19. Accessed April 20, 2024. https://ph01.tci-thaijo.org/index.php/ecticit/article/view/204409.