APA (7th ed.) Citation

SIMPSON, A. (1993). Menguasai WordPerfect 5.1. Elex Media Komputindo.

Chicago Style (17th ed.) Citation

SIMPSON, Alan. Menguasai WordPerfect 5.1. Elex Media Komputindo, 1993.

MLA (8th ed.) Citation

SIMPSON, Alan. Menguasai WordPerfect 5.1. Elex Media Komputindo, 1993.

Warning: These citations may not always be 100% accurate.