Authors
Weenakorn Ieosanurak
Department of Mathematics, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
Banphatree Khomkham
Department of Computer Science, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
Adisak Moumeesri
Department of Statistics, Faculty of Science, Silpakorn University, Nakhon Pathom, Thailand