1. Department of MathematicsFaculty of Science and TechnologyRambhai Barni Rajabhat University Thailand
2. Division of Mathematics and Statistics, Faculty of Science and TechnologyRajamangala University of Technology Phra Nakhon (RMUTP) Thailand
3. KMUTTFixed Point Research Laboratory, Department of Mathematics, Room SCL 802 Fixed Point Laboratory, Science Laboratory Building, Faculty of ScienceKing Mongkut's University of Technology Thonburi (KMUTT) Thailand