Nelson, Dave
The incredible payback: innovative sourcing solutions that deliver extraordinary results
[American Management Association, ], 2005
 eBooks
Robinson, Patrick J.
Industrial buying and creative marketing
Allyn & Bacon, 1967
 Buku Teks SO
Westing, John Howard
Industrial purchasing : buying for industry and budgetary institutions
John Wiley & Sons, 1956
 Buku Teks SO
Muhammad Arief
Pengendalian internal atas proses pengadaan barang dan jasa pada PT MAG = Internal control of procurement process in PT MAG
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
 UI - Tugas Akhir
Masterman, Jack W.E.
An introduction to building procurement systems
Spon Press , 2002
 Buku Teks SO