1. PG & Research Dept. of Mathematics, Kandaswami Kandar’s College, Velur, Namakkal, Tamil Nadu, India
2. School of Mathematics Madurai Kamaraj University, India
3. Al-Imam University College, Iraq
4. Government Arts and Science College, Idappadi, 637101 Salem District, Tamil Nadu, India
5. School of Economics, Madurai Kamaraj University, India
6. School of Education, Madurai Kamaraj University, India
7. Department of Statistics, Mizan-Tepi University, Ethiopia