Gaya APA
Nugroho, H, S, W., Mardella, E, A. (2009).
Denver Developmental Screening Test: Petunjuk Praktis .
Jakarta:
EGC.
Gaya MLA
Nugroho, Heru, Santoso, Wahito., Mardella, Eka, Anisa.
"Denver Developmental Screening Test: Petunjuk Praktis".
0
Jakarta:
EGC,
2009.
Text.