1. Faculty of Science and Technology, Valaya Alongkorn Rajabhat University under the Royal Patronage, 1 Phaholyothin Road, Klong Nueng, Klong Luang, Pathumthani 13180, Thailand
2. Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), 126 Pracha Uthit Road, Bang Mod, Thrung Khru, Bangkok 10140, Thailand