Gaya APA

Retnowati, E. et al (2012). Learning more Mathematics 2A (for grade VIII Junior high school) . Bandung: Grafindo Media pratama.

Gaya MLA

Retnowati, Endah. et al. "Learning more Mathematics 2A (for grade VIII Junior high school)". Bandung: Grafindo Media pratama, 2012. Text.