Thao, Nguyen Xuan, and Truong Thi Thuy Duong. “Selecting Target Market by Similar Measures in Interval Intuitionistic Fuzzy Set”. Technological and Economic Development of Economy 25, no. 5 (June 21, 2019): 934-950. Accessed December 15, 2019. https://journals.vgtu.lt/index.php/TEDE/article/view/10290.