Gaya APA
Petersen, L. (2004).
BAGAIMANA MEMOTIVASI ANAK BELAJAR : STOP AND THINK LEARNING .
jakarta:
Gramedia WIdiasarana Indonesia.
Gaya MLA
Petersen, Lindy.
"BAGAIMANA MEMOTIVASI ANAK BELAJAR : STOP AND THINK LEARNING".
jakarta:
Gramedia WIdiasarana Indonesia,
2004.
MP.