1. Ranking Of Octagonal Intuitionistic Fuzzy Numbers
2. C. Rajendran, and M. Ananthanarayanan, “Fuzzy Criticalpath Method with Hexagonal and Generalised Hexagonal Fuzzy Numbers Using Ranking Method”, International Journal of Applied Engineering Research, Vol. 13, 5, (2018)
3. P. Rajarajeswari and G. Menaka, “A New Approach for Ranking of Octagonal Intuitionistic Fuzzy Numbers”, International Journal of Fuzzy Logic Systems, Vol. 7, No. 2, (2017)
4. D. Stephen Dinagar and N. Rameshan, “A New approach for Fuzzy Critical Path Method Using Octagonal Fuzzy Numbers”, International Journal of Pure and Applied Mathematics, Vol. 119, 13, (2018)
5. D. Stephen Dinagar and N. Rameshan, “Solving Critical Path in Project Scheduling by using Ranking of Generalized Interval Valued Octagonal Fuzzy Numbers” Journal of Physical Sciences, Vol. 24, 53–611, (2019)