Lambert, Sylvie, author
Roto Vision, 1998
Buku Referensi
Wallbank, T. Walter, author
Scott, Foresman, 1965
Buku Teks
Wallbank, T. Walter, author
Scott, Foresman, 1967
Buku Teks
Augustynek, Zdzislaw, author
Kluwer Academic, 1989
Buku Teks
Cook, Arthur N., author
Littlefield Adams, 1969
Buku Teks