Gaya APA
INDRIYAWAN, E., SUDIYARTO, O, H, [.
(2007).
First step to be a programmer
.
Yogyakarta:
Andi.
Gaya MLA
INDRIYAWAN, EKO., SUDIYARTO, Oktaviani, Hastu, [ed.].
"First step to be a programmer".
Yogyakarta:
Andi,
2007.
Buku.