Widia, Widia, Eresti Ependi, Addela Amelia, Candra Candra, and Occa Roanisca. 2023. “Cytotoxicity Activity of Ethanol Extract of Mentangor Stem Skin (Calophyllum Rufigemmatum) Against Breast Cancer Cells MCF-7 in Vitro: Chemistry”. Jurnal Pijar Mipa 18 (1):72-76. https://doi.org/10.29303/jpm.v18i1.4113.