Bartle, Robert Gardner, 1927-, author
Scott, Foresman, 1968
Buku Teks
Bers, Lipman
Holt, Rinehart and winston, 1969
Buku Teks
Lange, Serge
Addison-Wesely, 1968
Buku Teks
Lightstone, A. H., author
Harper & Row, 1965
Buku Teks
Lightstone, A. H., author
Harper & Row, 1965
Buku Teks