Gaya APA
Sukirman, S, A, &.
(2009).
BIOLOGY (3)YEAR IX
(
ILMU SAINS (ILMU ALAM))
.
Jakarta:
Yudhistira , Jakarta.
Gaya MLA
Sukirman, Suyitno, A., &.
"BIOLOGY (3)YEAR IX".
ILMU SAINS (ILMU ALAM)
Jakarta:
Yudhistira , Jakarta,
2009.
Text.