Agung Pradata I.K., author
Fakultas Psikologi Universitas Indonesia, 2003
UI - Tesis Membership
Andi Mappiare A.T., author
Rajawali, 1992
Buku Teks
Dewa Ketut Sukardi, author
Bina Aksara, 1988
Buku Teks
Bernadette N. Setiadi, author
Universitas Indonesia, 1976
UI - Skripsi (Membership)
Suardiman
Studing, [date of publication not identified]
Buku Teks