Fatia Fatimah, and Andriyansah. “Analysis of Tourism Facilities Using N-Soft Set Decision Making Procedures”. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 4, no. 1 (February 18, 2020): 135 - 141. Accessed October 22, 2020. http://jurnal.iaii.or.id/index.php/RESTI/article/view/1536.