1. Aziz-ur-Rehman:
Department of Chemistry, Government College University, Lahore-54000, Pakistan
2. S. Rasool:
Department of Chemistry, Government College University, Lahore-54000, Pakistan
3. M. A. Abbasi:
Department of Chemistry, Government College University, Lahore-54000, Pakistan
4. K. M. Khan:
HEJ Research Institute of Chemistry, ICCBS, University of Karachi, Karachi, Pakistan
5. I. Ahmad:
Department of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
6. S. Afzal:
Department of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan