Andrews, S. (1997). Trees of the Year: Cladrastis and Maakia. Int. Dendrol. Soc. Year Book 1996: 12–26.
Spongberg, S. A. & Ma, J.-S. (1997). Cladrastis (Leguminosae subfamily Faboideae tribe Sophoreae): a historic and taxonomic overview. Int. Dendrol. Soc. Year Book 1996: 27–35.
