Sumner, M. (2012). Enterprise Resource Planning. Pearson Education India Pvt. Ltd.
Čikaški stil citiranja (17. izdanje)Sumner, Mary. Enterprise Resource Planning. New Delhi: Pearson Education India Pvt. Ltd, 2012.
MLA način citiranja (9. izdanje)Sumner, Mary. Enterprise Resource Planning. Pearson Education India Pvt. Ltd, 2012.
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