Nurul Aflah Department of Mining Faculty of Engineering, Syiah Kuala University, Banda Aceh, Indonesia
Muchlis Muchlis Department of Mining Faculty of Engineering, Syiah Kuala University, Banda Aceh, Indonesia
Syafrizal Idris Master Program of Physics, Faculty of Mathematic and Natural Sciences, Syiah Kuala University, Banda Aceh, Indonesi
Witan O Ardjakusumah Geology Consultant