Sohn 1975. Sohn, Ho-min (1975). Woleaian Reference Grammar. University of Hawaii Press. ISBN0-8248-0356-6.
Sohn, Ho-min; Tawerilmang, Anthony F. (1975). Woleaian reference grammar(PDF) (Open Access ed.). Honolulu: University Press of Hawaii. ISBN9780824882259. Retrieved 17 August 2021.