Rehman, A.- ur; Siddiqa, A.; Athar Abbasi, M.; Riaz, T.; Hussain, G.; Zahra Siddiqui, S.; Irshad, M.; Ajaib, M.; Ahmad, I. Bergia Ammannioides: Phytochemical Screening, Antioxidant Activity and Radical Scavenging Effects of Its Various Fractions. ajc 2013, 25, 7921-7926.