1. Department of Botany, Kohat University of Science and Technology, Kohat 26000, Pakistan
2. Riyadh Community College, King Saud University, Riyadh 11437, Saudi Arabia
3. Department of Chemistry, Government College Ara Khel, FR Kohat 26000, Pakistan
4. Department of Biological Sciences and Chemistry, University of Nizwa, 616 Nizwa, Oman