Sukwattanasinit, T., Wongsinkongman, P., Phattanawasin, P., Burana-Osot, J., Narakornwit, W. and Sotanaphun, U. 2024. DETERMINATION OF EXTRACTIVE VALUES BY UV/VIS SPECTROPHOTOMETRY COUPLED WITH CHEMOMETRIC METHODS: CASE STUDIES OF TURMERIC, ANDROGRAPHIS AND ROSELLE . Thai Bulletin of Pharmaceutical Sciences. 19, 2 (Jun. 2024), 185–194. DOI:https://doi.org/10.69598/tbps.19.2.185-194.