Omar, H., Nafiah, M.A., Mukhtar, M.R., Awang, K. and A. Hadi, H. 2010. Harman and isoquinoline alkaloids from Litsea petioluta Hk.f (Lauraceae). Malaysian Journal of Science. 29, 3 (Dec. 2010), 268–279. DOI:https://doi.org/10.22452/mjs.vol29no3.11.