Punch, Keith F.
Developing effective research proposlas
Sage Publications, 2008
 Buku Teks SO
Morrison, Ray
Developing effective engineering leadership
Institution of Engineering and Technology, 2006
 eBooks
Price, Miles Oscar, 1890-1968
Effective legal research
Brown and Company, 1979
 Buku Referensi
Price, Miles Oscar, 1890-1968
Effective legal research
Little, Brown, 1979
 Buku Teks SO
Knowles, John
Effective legal research paperback
Sweet & Maxwell, 2012
 Buku Teks SO