Gaya APA

Williams, B, K., Sawyer, S, C. (2011). Using information technology: a practical introduction to computers and communication (9 th.ed.). New York: McGraw-Hill.

Gaya MLA

Williams, Briam, K.., Sawyer, Stacey, C.. "Using information technology: a practical introduction to computers and communication". 9 th.ed. New York: McGraw-Hill, 2011. Text.