Kogent Learning Solutions, Inc. (2010). SAP SD questions and answers. Jones and Bartlett Publishers.
Chicago-referens (17:e uppl.)Kogent Learning Solutions, Inc. SAP SD Questions and Answers. Sudbury, Mass: Jones and Bartlett Publishers, 2010.
MLA-referens (9:e uppl.)Kogent Learning Solutions, Inc. SAP SD Questions and Answers. Jones and Bartlett Publishers, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.