Gaya APA
Retnowati, E. et al (2011).
Buku Paket Learning more Mathematics 1A (for Grade VII junior high school) .
Bandung:
Grafindo Media pratama.
Gaya MLA
Retnowati, Endah. et al.
"Buku Paket Learning more Mathematics 1A (for Grade VII junior high school)".
Bandung:
Grafindo Media pratama,
2011.
Text.