Winingsih, W. et al. 2023. Synthesis, Characterization, and Application of Molecularly Imprinted Polymer - Modified Silica Gel for Andrographolide Purification from Andrographis paniculata (Burm.f.) Nees Methanol Extract: http://www.doi.org/10.26538/tjnpr/v7i8.28. Tropical Journal of Natural Product Research (TJNPR). 7, 8 (Aug. 2023), 3761–3765.