Adianingsih, O. R., Ihsan, B. R. P., Puspita, O. E., & Maesayani, K. S. (2023). Validation of High-Performance Liquid Chromatography (HPLC) Method for Quantification of Ethyl p-Methoxycinnamate in Kaempferia galanga Extract: http://www.doi.org/10.26538/tjnpr/v7i8.39. Tropical Journal of Natural Product Research (TJNPR), 7(8), 3829-3835. https://tjnpr.org/index.php/home/article/view/2459