“Determination of Flavonoid Levels of Raru Bark Methanol Extract (Cotylelobium Lanceolatum Craib) on Variations in Solvent Concentration Using UV-Vis Spectrophotometry Method”. 2025. Journal of Pharmaceutical and Sciences 8 (1): 437-49. https://doi.org/10.36490/journal-jps.com.v8i1.724.