1. Department of Geology, University of Malaya, 50603 Kuala Lumpur, Malaysia
2. Geology Departments, Faculty of Applied Science, Taiz University, 6803 Taiz, Yemen
3. Department of Petroleum Engineering, Kazan Federal University, Kazan 420008, Russia
4. Petroleum Engineering and Geoengineering, Rajiv Gandhi Institute of Petroleum Technology, Jais, Amethi 229 304, India
5. Geosciences Department, Faculty of Science and Information Technology, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia
6. School of Civil Engineering, Faculty of Engineering Universiti Teknologi Malaysia, Skudai Johor, 81310 Malaysia
7. Department of Geology, Usmanu Danfodiyo University, P.M.B. 2346 Sokoto 840004, Nigeria