Gaya APA

GURITNO, S. et al (2011). theory and application of IT RESEARCH (1). JL BEO 38-40 YOGYAKARTA: Andi Offset Yogyakarta.

Gaya MLA

GURITNO, SURYO. et al. "theory and application of IT RESEARCH". 1 JL BEO 38-40 YOGYAKARTA: Andi Offset Yogyakarta, 2011. Text Book Informatika.