Gaya APA

WILLIAMS, B, K., SAWYER, S, C. (2007). Using Information Technology A Practical Introduction to Computers & Communications . USA: MC Graw Hill Book Company.

Gaya MLA

WILLIAMS, BRIAN, K.., SAWYER, STACEY, C.. "Using Information Technology A Practical Introduction to Computers & Communications". USA: MC Graw Hill Book Company, 2007. Text.