Pigay, Natalis
Pustaka Sinar Harapan, [date of publication not identified]
Buku Teks
Artikel Jurnal
Breman, Jan
LP3ES, 1986
Buku Teks
Ahmad Dohar
Program Pascasarjana Universitas Indonesia, 1999
UI - Tesis (Membership)
Harry Heriawan Saleh
Pustaka Sinar Harapan, 2005
Buku Teks