Nindya Meylani, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Tesis (Membership)
edited by Robert M. Hashway
Praeger, 1990
Buku Referensi
Hallahan, Daniel P., author
Prentice-Hall, 1988
Buku Teks
National Education Association of the United States, 1964
Buku Teks
Department of Health, education and welfare, 1964
Buku Teks