et.al, Ramona Ramli. “Selection of Trusted Organic Food Sellers on Instagram Using Fuzzy Analytic Hierarchy Process”. 2021. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 3, Apr. 2021, pp. 1981-6, https://www.turcomat.org/index.php/turkbilmat/article/view/1034.