N. Nazirah, M. A. Nasution, R. Ridwanto, and H. M. Nasution, “Phytochemical screening and antioxidant activity test of methanol extract salam leaves (Syzygium polyanthum (Wight.) Walp.) from Gampong Bunot Pidie Jaya using the DPPH method”, JPS, vol. 6, no. 5-si, pp. 104–116, Dec. 2023.