Dòng Nội dung
1
Microsoft Excel 2002 : complete / Stephen Haag, James T. Perry.
Boston : McGraw-Hill/Irwin, c2002.
1 v. (various pagings) ; 28 cm.
2
New perspectives on the Internet / James T. Perry, Gary P. Schneider.
Cambridge, MA : Course Technology, 1999.
1 vol. (various pagings) : ill. ; 28 cm.