Agustina, W., L. D. Juliawaty, E. H. Hakim, and Y. M. Syah. “Flavonoids from Macaranga Lowii”. Journal of Mathematical and Fundamental Sciences, vol. 44, no. 1, July 2013, pp. 13-18, doi:10.5614/itbj.sci.2012.44.1.2.