Gaya APA

Microsoft office 2013 illustrated, first course. (USA : Cengage learni). USA : Cengage learning, 2014: USA : Cengage learning, 2014.

Gaya MLA

Microsoft office 2013 illustrated, first course. . USA : Cengage learning, 2014: USA : Cengage learning, 2014, USA : Cengage learni. Text.