R. Yanti, M. A. Nasution, R. Ridwanto, and H. M. Nasution, “Phytochemical screening and antioxidant activity test of kedondong leaf ethanol extract (Spondias dulcis Soland. ex Forst. fil) with DPPH method”, JPS, vol. 6, no. 5, pp. 177–188, Dec. 2023.