Trump, Ross M.
Essentials of marketing management / Ross M. Trump, Martin L. Bell, William Emory, Charles Leon Lapp, and others
Houghton Mifflin , 1966
Buku Teks SO
The Economist
The Economist, 2010
Majalah, Jurnal, Buletin
Kalbermatten, John M.
Appropriate technology for water supply and sanitation : a sanitation field manual / John M. Kalbermatten, DeAnne S. Julius, Charles G. Gunnerson
The World Bank, 1980
Buku Teks
Huffer, Charles M.
An Introduction to astronomy / Charles M. Huffer
Holt Rinehart & Winston, 1967
Buku Teks SO
Robertson, Ross M.
The Comptroller and bank supervision: a historical appraisal / by Ross M. Robertson.
Office of the Comptroller of the Currenc, 1968
Buku Teks SO