Price, Miles Oscar, 1890-1968
Effective legal research
Little, Brown, 1979
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Knowles, John
Effective legal research paperback
Sweet & Maxwell, 2012
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Gerstenfeld, Arthur
Effective management of research and development
Addison-Wesley, 1970
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Punch, Keith F.
Developing effective research proposlas
Sage, 2003
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Punch, Keith F.
Developing effective research proposlas
Sage Publications, 2008
 Buku Teks SO