Dobler, Donald W.
Purchasing and supply management : text and cases
McGraw-Hill, 1996
 Buku Teks SO
Baily, P.J.H.
Purchasing and supply management / P.J.H. Baily
Chapman and Hall , 1973
 Buku Teks SO
The purchasing handbook : a guide for the purchasing and supply professional
Joseph L. Cavinato and Ralph G. Kauffman, editors in chief
McGraw-Hill, 1999
 Buku Referensi
Dobler, Donald W.
Purchasing and materials management text and cases
McGraw-Hill, 1984
 Buku Teks SO
Burt, David N.
Proactive purchasing in the supply chain : the key to world class procurement
McGraw-Hill, 2012
 Buku Teks SO