1. Mining Engineering and Environment Department, Higher Institute of Mining,Industry and Geology, Emig-Bp, Niamey 11583, Niger
2. School of Pharmacy, National Forensic Sciences University, Sector-09, Gandhinagar 382007, India
3. Département Science de l’Environnement, Faculté des Science Agronomiques, Université Boubakar Bâ de Tillabéri, BP 175, Tillabéri, Niger
4. Champollion National University Institute, Albi Campus University Library of Albi, Albi, France