Gaya APA

Somentri, L., Huda, N. (2013). Advanced learning geography 1 : For grade X senior high school (Cet.1). Bandung: Grafindo Media Pratama.

Gaya MLA

Somentri, Lili., Huda, Nurul. "Advanced learning geography 1 : For grade X senior high school". Cet.1 Bandung: Grafindo Media Pratama, 2013. Text.