Glueck, William F., author
McGraw-Hill, 1972
Buku Teks
Nia Sarinastiti, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
UI - Disertasi (Membership)
Virmani, B.R., author
Toppan Company (s), 1997
Buku Teks
editors: Grant Harman
UNESCO, 1991
Buku Teks
Soriane, Emmanuel V., author
Sintag-Tala, 1987
Buku Teks