1. Department of Mathematics, Indian Arts and Science College, Tiruvannamalai 606802, Tamil Nadu, India
2. Department of Industrial Engineering, Pusan National University, Busan 46241, Republic of Korea
3. Department of Mathematics, Thiruvalluvar University, Vellore 632115, Tamil Nadu, India
4. Department of Mathematics, Faculty of Science and Technology, Phuket Rajabhat University, Phuket 83000, Thailand