APA Style

Firmansyah, H. et al (2012). Advanced Learning Economics 1 for Grade X Senior High School (2). Bandung: PT. Grasindo Media Pratama.

MLA Style

Firmansyah, Herlan. et al. "Advanced Learning Economics 1 for Grade X Senior High School". 2 Bandung: PT. Grasindo Media Pratama, 2012. Text.