Tawfik, Kamilia, Marwa Al- Barazi, Manal Bashir, Wadaa Al- Marzouq, Rasha AlSoufi, and Hind Kharsa. 2015. “A COMPARATIVE STUDY OF ANTIOXIDANT ACTIVITIES OF ZIZIPHUS AND COLOCYNTH FROM SAUDI ARABIA DESERTS AND PROPOSED PHARMACEUTICAL PRODUCTS ”. International Research Journal of Pharmaceutical and Applied Sciences 5 (5), 1-6. https://scienztech.org/index.php/irjpas/article/view/648.