TANTI et al. 2021. MITRAGYNINE PERCENTAGES OF VARIOUS KRATOM VARIANTS SEIZED IN INDONESIA: A QUANTITATIVE ANALYSIS USING LIQUID CHROMATOGRAPHY-PHOTO DIODE ARRAY DETECTOR. International Journal of Applied Pharmaceutics. 13, 5 (Sep. 2021), 252–256. DOI:https://doi.org/10.22159/ijap.2021v13i5.41910.