1. Walai Rukhavej Botanical Research Institute
Contact: Assoc. Professor and Director Dr. Rojchai Satrawaha
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2. Sultan Idris, University of Education, Malaysia
Contact:Professor Dr. Saberi Bin Othman
Department of Biology
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4. Hue University of Agriculture and Forestry (HUAF), Vietnam
Contact: Mr. Ngo Tri Dung
Faculty of Forestry
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