Van Duyn, Julia, author
Reston Publishing Company, Inc ., 1975
Buku Teks
Van Duyn, Julia, author
Reston Publishing Company, Inc ., 1975
Buku Teks
Jensen, Kathleen, 1949-, author
Springer-Verlag, 1975, 1978
Buku Teks
edited by Thomas van Raalte
O`Reilly, 1990
Buku Teks
Ronan, Jana Smith
Libraries Unlimited, 2003
Buku Referensi