Kavanagh, Thomas C.
Contruction management: a profesional approach
McGraw-Hill, 1978
 Buku Teks
Hoover, Stewart V.
Simulation: a problem-solving approach
Addison-Wesley, 1990
 Buku Teks
Cohen, David
Precalculus: a problem-oriented approach
Thomson Brooks/Cole, 2005
 Buku Teks SO
Laudon, Kenneth C., 1944-
Information system: a problem-solving approach
The Dryden Press , 1995
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Smith, Marilyn Z.
Standard Cobol: a problem-solving approach
Houghton-Mifflin, 1974
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