Yiing, L.C., Sang, J. and Kiew, R. 2018.

Begonia species (Begoniaceae) from Gunung Penrissen, Sarawak, Borneo, including two new species and a new subspecies

. Phytotaxa. 381, 1 (Dec. 2018), 12–21. DOI:https://doi.org/10.11646/phytotaxa.381.1.5.