Edwin Antony Raj. M , Geetha Sivaraman, Vishnukumar. P. “Selection Of DTH Operator Using Improved Accuracy Function On Trapezoidal Intuitionistic Fuzzy Numbers”. International Journal of Advanced Science and Technology, Vol. 29, no. 08, June 2020, pp. 1706-11, http://sersc.org/journals/index.php/IJAST/article/view/22301.