Gaya APA
Purwanto, K., Purwanto, M, I.
(2017).
Smart Parenting
.
Yogyakarta:
Penerbit Andi.
Gaya MLA
Purwanto, Kalis., Purwanto, M., Idris.
"Smart Parenting".
Yogyakarta:
Penerbit Andi,
2017.
Text.