Extended TOPSIS with Correlation Coefficient of Triangular Intuitionistic Fuzzy Sets for Multiple Attribute Group Decision Making. - John Robinson P.; E. C. Henry Amirtharaj (Int. J. Decis. Support Syst. Technol., 2011)

A Short Primer on the Correlation Coefficient of Vague Sets. - John Robinson P.; E. C. Henry Amirtharaj (Int. J. Fuzzy Syst. Appl., 2011)

Vague Correlation Coefficient of Interval Vague Sets. - John Robinson P.; E. C. Henry Amirtharaj (Int. J. Fuzzy Syst. Appl., 2012)

Multiple Attribute Group Decision Analysis for Intuitionistic Triangular and Trapezoidal Fuzzy Numbers. - John Robinson P. (Int. J. Fuzzy Syst. Appl., 2016)

Intuitionistic Trapezoidal Fuzzy MAGDM Problems with Sumudu Transform in Numerical Methods. - John Robinson P.; Jeeva S (Int. J. Fuzzy Syst. Appl., 2019)