Suharsimi Arikunto, author
Bina Aksara, 1988
Buku Teks
Winarno Surachmad, author
Departemen Pendidikan dan Kebudayaan, [date of publication not identified]
Buku Teks
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis (Membership)
Beeby, C. E., author
LP3ES, 1981
Buku Teks
Beeby, C. E., author
LP3ES, 1982
Buku Teks