Gaya APA
SANTROCK, J, W. (2014).
Essentials of life-span development, third edition (third edition).
New Yok:
McGraw-Hill International Book Company.
Gaya MLA
SANTROCK, John, W..
"Essentials of life-span development, third edition".
third edition
New Yok:
McGraw-Hill International Book Company,
2014.
Fakultas Psikologi.