Health research : the systems approach
edited by Harriet H. Werley
Springer, 1976
 Buku Teks
Kinnear, Thomas C., 1943-
Marketing research : an applied approach
McGraw-Hill, 1996
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Kinnear, Thomas C., 1943-
Marketing research : an applied approach
McGraw-Hill, 1983
 Buku Teks
Kinnear, Thomas C., 1943-
Marketing research : an applied approach
McGraw-Hill, 1991
 Buku Teks
Thierauf, Robert J.
An introductory approach to operations research
John Wiley & Sons, 1981
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