Wulandari, L. , Sutipno, D.H. and Pratoko, D.K. 2021. IAI CONFERENCE: IR spectroscopy coupled with chemometrics used as a simple and rapid method to determine the caffeine content of tea products . Pharmacy Education. 21, 2 (Jul. 2021), p. 195–200. DOI:https://doi.org/10.46542/pe.2021.212.195200.