Joshi, K. 2010. Scanning electron microscopic study of leaf surface of some species of <i>Hopea</i> Roxb. (Dipterocarpaceae): implications for taxonomy. Botanica Orientalis: Journal of Plant Science. 6, (Mar. 2010), 106–108. DOI:https://doi.org/10.3126/botor.v6i0.2919.