Gaya APA

Technology (NIIT), N, I, O, I. (2007). Office2007 step by step word , excel, powerpoint (1). washington: National Institute of Information Technology (NIIT).

Gaya MLA

Technology (NIIT), National, Institute, Of, Information. "Office2007 step by step word , excel, powerpoint". 1 washington: National Institute of Information Technology (NIIT), 2007. TEXT.