Prof. M. Rondhi, S.P., M.P., Ph.D. - Jember University

Prof. Faizal Ali Anwarali Khan - Universiti Malaysia Sarawak

Dr. Orawan Srisompun - Mahasarakham University

Dr. Joon-Yung Cha - Gyeongsang National University

Christian Cilas - Cirad Scientist