Riza, Ahyar, et al. “Effect of Extraction Method and Solvent Type on Total Phenolics Content, Total Flavonoid and Antioxidant Activity of Pegagan Extract (Centella Asiatica (Linn.) Urban)”. Bioscientia Medicina : Journal of Biomedicine and Translational Research, vol. 8, no. 1, Nov. 2023, pp. 3873-81, https://doi.org/10.37275/bsm.v8i1.902.