B. O. Oyebanji, A. B. Saba, and O. A. Oridupa, “STUDIES ON THE ANTI-INFLAMMATORY, ANALGESIC AND ANTIPYREXIC ACTIVITIES OF BETULINIC ACID DERIVED FROM TETRACERA POTATORIA”, Afr J Tradit Complement Altern Med, vol. 11, no. 1, pp. 30–33, Oct. 2013.