Dobler, Donald W.
Purchasing and supply management : text and cases
McGraw-Hill, 1996
 Buku Teks SO
Turnip, P.G. Raymond
Perbaikan level kualitas purchasing di PT XYZ dengan metode six sigma = Improving the quality level of purchasing at PT XYZ based on six sigma
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
 UI - Tesis Membership
Hempel, George H.
Bank management: text and cases
John Wiley & Sons, 1983
 Buku Teks SO
Dess, Gregory G.
Strategic management : text and cases
MCGraw-Hill , 2004
 Multimedia
Lal, Rajiv
Marketing management : text and cases
McGraw-Hill, 2005
 Buku Teks SO