Philippine Commission (1901). Report of the Philippine Commission to the President (Report). Washington: Government Printing Office. Nevertheless, anyone who knows Visaya will note the moment that he studies the Moro language of Sulu that...
Tan (1967), p. 16 Tan, Evangeline K. (1967). The Phonology of Tausug: A Descriptive Analysis (Master's thesis). University of British Columbia. doi:10.14288/1.0105420.
Tan (1967). Tan, Evangeline K. (1967). The Phonology of Tausug: A Descriptive Analysis (Master's thesis). University of British Columbia. doi:10.14288/1.0105420.