Harsono, Andre, Abror Rahman, Rizqidhana J. Putri, Tjitjik S. Tjahjandarie, Ratih D. Saputri, Norizan Ahmat, and Mulyadi Tanjung. “Isolation of Lignans from The Stem Bark of Willughbeia Coriacea and Their Cytotoxic Activity: Http: .www.doi.org 10.26538 Tjnpr V7i2.14”. Tropical Journal of Natural Product Research (TJNPR) 7, no. 2 (February 28, 2023): 2394–2396. Accessed March 29, 2024. https://tjnpr.org/index.php/home/article/view/1654.