Hamilton, Robert W.
Fundamentals of modern business
Little, Brown , 1989.
 Buku Teks SO
Hamilton, Robert W.
Fundamentals of modern business
Little, Brown , 1989.
 Buku Teks SO
Sharp, Henry
Modern fundamentals of mathematics
Prentice-Hall, 1968
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Cundiff, Edward W.
Fundamentals of modern marketing
Prentice-Hall of India, 1980
 Buku Teks SO
Eisberg, Robert M.
Fundamentals of modern physics
John Wiley & Sons, 1961
 Buku Teks SO