Cortez, Edwin M.
American Library Association, 1987
Buku Referensi
Cooper, Michael D., author
Wiley, 1996
Buku Teks
London, Keith R., author
McGraw-Hill, 1976
Buku Teks
UNESCO, 1977
Buku Teks
Yanuar Yoga Prasetyawan, author
2013
UI - Tesis (Membership)