Tri Ediana Yusuf, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1987
UI - Skripsi (Membership)
Artikel Jurnal
International Society for Educational Information
ISEI, 1987
Buku Teks
Dore, R.P., author
The Athlone Press, 1984
Buku Teks
Passin, Herbert, author
Kodansha, 1982
Buku Teks