Gaya APA
Hayen,Roger. (2009).
SAP R/3 enterprise software : An introduction international edition (International edition).
Singapore:
McGraw-Hill.
Gaya Chicago
Hayen,Roger.
SAP R/3 enterprise software : An introduction international edition.
International edition
Singapore:
McGraw-Hill,
2009.
Text.
Gaya MLA
Hayen,Roger.
SAP R/3 enterprise software : An introduction international edition.
International edition
Singapore:
McGraw-Hill,
2009.
Text.
Gaya Turabian
Hayen,Roger.
SAP R/3 enterprise software : An introduction international edition.
International edition
Singapore:
McGraw-Hill,
2009.
Print.