Nurfadilah, S. “Diversity of Epiphytic Orchids and Host Trees (Phorophytes) in Secondary Forest of Coban Trisula, Malang Regency, East Java, Indonesia”. BIOTROPIA, vol. 22, no. 2, Mar. 2016, pp. 120-8, doi:10.11598/btb.2015.22.2.450.