Ellis, Harry B.
The Roland Press, 1956
Buku Teks SO
by Imdaad Hamid ... [and others]
PWI Kaltim, 1989
Buku Referensi
Aris Ananta
Demographic Institute, Faculty of Economics, University of Indonesia, 1995
Buku Teks
Burhan Djabir Magenda
Cornell modern Indonesia Project, 1991
Buku Teks
Hydrick, J.L.
Netherlands Information Bureau, 1942
Buku Teks