Basic tables in business and economics / Editor by Edwin B. Cox
McGraw-Hill , 1967
Buku Teks SO
The Writer's world: readings for college composition / edited by George Arms, William M. Gibson, Louis G. Locke.
St. Martin's Press, 1978
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Thomas, David A. Lloyd
Locke on Government
Routledge, 1995
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Bajpai, Avi C.
Applied math
John Wiley & Sons, 1983
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Wang, Susheng. author
Math in economics
World Scientific , 2015
Buku Teks SO