Abstract
Phunphayap, P; Khemaratchatakumthorn, T; Sumritnorrapong, P
Phunphayap, P (通讯作者),Silpakorn Univ, Fac Sci, Dept Math, Nakhon Pathom 73000, Thailand.
INTERNATIONAL JOURNAL OF MATHEMATICS AND COMPUTER SCIENCE, 2022; 17 (1): 11