Gaya APA
Sugijono, ., Adinawan, C.
(2009).
Math for junior high school 2nd semester grade VIII
.
Jakarta:
Erlangga.
Gaya MLA
Sugijono, ., Adinawan, Cholik.
"Math for junior high school 2nd semester grade VIII".
Jakarta:
Erlangga,
2009.
Text.