Abdul Malek Yaakob, Ayesha Hamzah, Syibrah Naim, Siti Fatimah Abdul Rahman. 2020. “Mental Health and Well Being Indicators Based on Interval Type-2 Fuzzy System”. International Journal of Advanced Science and Technology 29 (05), 11000-12. http://sersc.org/journals/index.php/IJAST/article/view/25179.