Kasim Mansur, et al. “HUBUNG KAIT KESANGGUPAN UNTUK MEMBAYAR (WTP) DAN RUANG KELIARAN PELANCONG DI KOTA BELUD, SABAH”. Journal of Islamic, Social, Economics and Development, vol. 6, no. 42, Dec. 2021, https://academicinspired.com/jised/article/view/1343.