Agus Irianto
Prenadamedia Group, 2016
Buku Teks SO
Bernardine R. Wirjana
Andi, 2005
Buku Teks
editor, Achmad Rofi`ie
Southeast Asian Farum For Develoment Alternatives, 1992
Buku Teks
Keating, Charles J.
Kanisius, 1994
Buku Teks
Sri Hartati
Graha Ilmu, 2008
Buku Teks