Wastuti Hidayati Suriyah, et al. “Cytotoxic Activity of Ethyl-P-Methoxycinnamate from Kaempferia Galanga in HSC-4 Oral Cancer Cells”. YARSI Dental Journal, vol. 2, no. 1, Aug. 2024, pp. 1-7, https://academicjournal.yarsi.ac.id/ojs3/index.php/dentalj/article/view/217.