Gaya APA

Retnowati, E. et al (2012). Learning More Mathematics 2B (for grade VIII junior high school) . Bandung: Grafindo Media pratama.

Gaya MLA

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