Gaya APA

WILLIAMS, B, K., SAWYER, S, C. (2007). Using Information Technology : A Practical Introduction to Computers & Communications (7). USA: McGraw Hill Companies.

Gaya MLA

WILLIAMS, BRIAN, K.., SAWYER, STACEY, C.. "Using Information Technology : A Practical Introduction to Computers & Communications". 7 USA: McGraw Hill Companies, 2007. Text.