Safitri , N., J. Srihirun, R. Amalia, and Q. Aini. “A Business analytics of a leading halal hotel in in Situbondo, Indonesia”. Journal of Liberal Arts RMUTT, vol. 3, no. 1, June 2022, pp. 53-65, https://so07.tci-thaijo.org/index.php/JLA/article/view/528.