Gaya APA
Santrock, J, W., Widyasinta, B.
(2012).
Life - Span Development
(
Ed 13)
.
Jakarta:
ERLANGGA.
Gaya MLA
Santrock, John, W.., Widyasinta, Benedictine.
"Life - Span Development".
Ed 13
Jakarta:
ERLANGGA,
2012.
Text.