Yulinda Rosa, author
Artikel Jurnal
Friedlander, Walter A., author
prentice Hall of India, 1974
Buku Teks
Friedlander, Walter A., author
Prentice Hall of India, 1982
Buku Teks
Bambang Shergi Laksmono, author
PAU Ilmu-Ilmu Sosial Universitas Indonesia, 1989
Buku Teks
Australian council of social service, 0
Buku Teks