Gaya APA
Khadijah, ., Armanila, .
(2017).
Permasalahan anak usia dini
(
Cet.2)
.
Medan:
Perdana Publishing.
Gaya MLA
Khadijah, ., Armanila, .
"Permasalahan anak usia dini".
Cet.2
Medan:
Perdana Publishing,
2017.
Text.