Gaya APA

Sujatmiko, P. (2010). The Essentials of mathematics: for grade VII of junior high school and islamic junior high school (Cet. 1.). Solo: Bilingual.

Gaya MLA

Sujatmiko, Ponco. "The Essentials of mathematics: for grade VII of junior high school and islamic junior high school". Cet. 1. Solo: Bilingual, 2010. Text.