[1] King Mongkuts Univ Technol Thonburi KMUTT, Fac Sci, Dept Math, Bangkok, Thailand
[2] King Mongkuts Univ Technol Thonburi KMUTT, Fac Sci, Ctr Excellence Theoret & Computat Sci TaCS CoE, Fixed Point Res Lab,Fixed Point Theory & Applicat, Bangkok, Thailand
[3] King Mongkuts Univ Technol Thonburi KMUTT, Fac Sci, Ctr Excellence Theoret & Computat Sci TaCS CoE, Bangkok, Thailand
[4] King Mongkuts Univ Technol Thonburi KMUTT, Fac Sci, Ctr Excellence Theoret & Computat Sci TaCS CoE, NCAO Res Ctr,Fixed Point Theory & Applicat Res Gr, 126 Pracha Uthit Rd, Bangkok 10140, Thailand