The Journal of King Mongkut's University of Technology North Bangkok
วารสารวิชาการพระจอมเกล้าพระนครเหนือ

Aphichaya Saiyud
Department of Statistics, Faculty of Science, Kasetsart University, Bangkok
Thailand

Juthaphorn Sinsomboonthong
Department of Statistics, Faculty of Science, Kasetsart University, Bangkok
Thailand

Lily Ingsrisawang
Department of Statistics, Faculty of Science, Kasetsart University, Bangkok
Thailand