Gaya APA
purwoko, ., Fendi, .
(2009).
Phisics For senior High SchoolmYear X
.
Surabaya:
Yudistira.
Gaya MLA
purwoko, ., Fendi, .
"Phisics For senior High SchoolmYear X".
Surabaya:
Yudistira,
2009.
BUKU NON FIKSI.