compiled by Howard P. McKaughan, Batua A. Macaraya
University of Hawaii Press, 1967
Buku Referensi
McKaughan, Howard P.
Institute of National Language, 1958
Buku Teks
Sapir, Edward
Munchen Heuber 1961
Buku Teks
Buku Teks
Jakobson, Roman
Berlin Akademic-Verlag 1960
Buku Teks