Yusuf Enoch, author
Bumi Aksara, 1992
Buku Teks
Sri Endang Mulyati, author
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2010
UI - Tesis (Open)
Wina Sanjaya, author
Kencana Prenada Media Group, 2010
Buku Teks
Coombs, Philip H., author
International Institute for Educational Planning Unesco, 1970
Buku Teks
The Centre , 1982
Buku Teks