Garbarino, Merwyn
Holt, Rinehart and Winston, 1977
Buku Teks
Lowie, Robert H., author
Holt Rinehart and Winston, 1937
Buku Teks
Ayres, Frank, 1901-1994, author
McGraw-Hill, 1982
Buku Teks
Lipschutz, Seymour, 1915-2003, author
McGraw-Hill, 1982
Buku Teks
Abbott, Michael M., author
McGraw-Hill, 1989
Buku Teks