Artikel Jurnal
Kaligis, O.C. (Otto Cornelis), 1942-, author
Yasrif Watampone, 2003
Buku Teks
Universitas Indonesia, 2001
UI - Skripsi (Membership)
McWalter, Ian, 1951-, author
JP Books, 2006
Buku Teks
Torang, Grace Anne, author
Universitas Indonesia, 2002
UI - Skripsi (Membership)