Williams, G. C. (2008). Implementing SAP ERP sales & distribution. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Williams, Glynn C. Implementing SAP ERP Sales & Distribution. McGraw-Hill, 2008.
Lua MLA (8ú heag.)Williams, Glynn C. Implementing SAP ERP Sales & Distribution. McGraw-Hill, 2008.
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