Kent, Raymond P., author
Holt, Rinehart & Winston, 1947
Buku Teks
Klise, Eugene S., author
South-Western College Publishing, 1972
Buku Teks
Bradford, Frederick A., author
Longmans, Green, 1939
Buku Teks
Mishkin, Frederick S., author
Pearson Education, 2013
Buku Teks
Culbertson, John M.
McGraw-Hill, 1972
Buku Teks