Gaya APA
Aryulina, D. et al
(2010).
Biology 1A for Senior High School Grade X Semester 1
.
JAKARTA:
Esis.
Gaya MLA
Aryulina, Diah. et al.
"Biology 1A for Senior High School Grade X Semester 1".
JAKARTA:
Esis,
2010.
Text.