Pool, John Charles
The instant economist / John Charles Pool and Ross M. LaRoe.
Massachussetts cAddsion-Wesley 21 cm., 1985
 Buku Teks
Bell, Charles G.
California Government Today: Politics of reform/ Charles G. Bell, Charles M. Price
Dorsey Press, 1980
 Buku Teks SO
Luyben, Michael L.
Essentials of process control / Michael L. Luyben, William L. Luyben
McGraw-Hill, 1987
 Buku Teks SO
King, William Richard, 1938-
Quantitative analysis for marketing management / William R. King
McGraw-Hill, 1967
 Buku Teks SO
Bell, Sir Charles
Tibet : past & present / Sir Charles Bell
Oxford University Press, 1927
 Buku Teks SO