Nagpal, A. (2003). ALE, EDI & IDoc technologies for SAP (2nd ed.). Prentice-Hall of India.
Chicago Style aipamenaNagpal, Arvind. ALE, EDI & IDoc Technologies for SAP. 2nd ed. New Delhi: Prentice-Hall of India, 2003.
MLA aipamenaNagpal, Arvind. ALE, EDI & IDoc Technologies for SAP. 2nd ed. Prentice-Hall of India, 2003.
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