Gaya APA
Iskandar, Y.
(2003).
Inteligensi vol. 2, 3, dan 4
.
Jakarta:
Yayasan Dharma Graha.
Gaya MLA
Iskandar, Yul.
"Inteligensi vol. 2, 3, dan 4".
Jakarta:
Yayasan Dharma Graha,
2003.
Printed Book.