Gaya APA
EFFENDY, .
(2007).
A-LEVEL CHEMISTRY FOR SENIOR HIGH SCHOOL STUDENTS VOLUME 2A
.
Malang:
Bayumedia.
Gaya MLA
EFFENDY, .
"A-LEVEL CHEMISTRY FOR SENIOR HIGH SCHOOL STUDENTS VOLUME 2A".
Malang:
Bayumedia,
2007.
Nontext.