A. Dalimunthe, P. A. Z. Hasibuan, and D. Satria, “The PI3KCA and AKT Inhibitory Activities of Litsea Cubeba Lour. Fruits and Heartwoods Towards Hela Cells”, Open Access Maced J Med Sci, vol. 7, no. 9, pp. 1422–1424, May 2019.