Ahmad, S., S. Riyanto, M.A. Sukari, M. Rahmani, and A.M. Ali. 2013. “Hopane and Lupane Triterpenes from Leaves and Stem Bark of Aegle Marmelos (Rutaceae)”. Asian Journal of Chemistry 25 (8):4591-94. https://doi.org/10.14233/ajchem.2013.14218.