Miller, Roger LeRoy, author
McGraw-Hill, 1993
Buku Teks
Miller, Roger LeRoy, author
McGrow-Hill, 1985
Buku Teks
Kent, Raymond P., author
Holt, Rinehart & Winston, 1947
Buku Teks
Klise, Eugene S., author
South-Western College Publishing, 1972
Buku Teks
Kent, Raymond P., author
Holt, Rinehart & Winston, [Date of publication not identified]
Buku Teks