S, S., J. Sk, M. k, N. nawaz Sk, and S. M. “PRELIMINARY PHYTOCHEMICAL SCREENING AND IN-VITRO ANTIOXIDANT ACTIVITY OF GULKAND ”. International Research Journal of Pharmaceutical and Applied Sciences, Vol. 3, no. 2, Apr. 2013, pp. 186-9, https://scienztech.org/index.php/irjpas/article/view/672.