Triyasmono, L., Munisa, I., Anwar, K., Wianto, T., Santoso, H. B., & Rohman, A. (2021). Identification and Authentication of Eurycoma longifolia Root Extract from Zingiber officinale rhizome using FTIR Spectroscopy and Chemometrics. Indonesian Journal of Chemometrics and Pharmaceutical Analysis, 1(2), 69-77. https://doi.org/10.22146/ijcpa.639