1. Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya, Sumatra Selatan, Indonesia
2. Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
3. Geography Department, Faculty of Arts and Humanities, Taibah University, Medina, Saudi Arabia
4. Doctoral Program of Enviromental Sciences, Graduate School, Universitas Sriwijaya, Palembang, Indonesia
5. Department of Geography, College of Arabic Language and Social Studies, Qassim University, Burayda, Saudi Arabia
6. Geography Department, Faculty of Arts and Humanities, Tartous University, Tartous, Syria