Department of Pharmacognosy College of Pharmacy King Saud University P.O. Box-2457 Riyadh-11451 Saudi Arabia;
Department of Pharmacognosy College of Pharmacy Prince Sattam bin Abdulaziz University Al-Kharj KSA;
Department of Pharmaceutical Chemistry & Pharmacognosy Unaizah College of Pharmacy Qassim University Al Qassim Saudi Arabia;