Gaya APA
Petersen, L.
(2005).
Bagaimana Memotivasi Anak Belajar : Stop and Think Learning
(
Cet.1)
.
Jakarta:
Gramedia.
Gaya MLA
Petersen, Lindy.
"Bagaimana Memotivasi Anak Belajar : Stop and Think Learning".
Cet.1
Jakarta:
Gramedia,
2005.
Text.