Prof. Dr. Hafiz A. Alaka (University of Hertfordshire, Hatfield, United Kingdom).
Dr. Makatar Wae-Hayee (Prince of Songkla University, Hatyai, Thailand).
Prof. Dr. Sri Devi (Velammal Institute of Technology, India).
Dr. Olonade Kolawole (University of Lagos, Nigeria), dan lainnya. (ril/air)
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