Khairuddin, Khairuddin, et al. “Isolasi Dan Karakterisasi Senyawa Alkaloid Ekstrak Metanol Klika Faloak (Sterculia Populifolia)”. Ad-Dawaa’ Journal of Pharmaceutical Sciences, vol. 1, no. 2, Dec. 2018, doi:10.24252/djps.v1i2.11337.