Defi Anita Jahro, author
UI - Skripsi (Membership)
Spector, Ivar
Universtity of Washington Press, 1958
Buku Teks
Foreign Languages Publishing House, 1959
Buku Teks
Boangmanalu, Singkop Boas, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1995
UI - Laporan Penelitian
Best, Harry
Philosophical Library, 1951
Buku Teks