Gaya APA
Nugroho, H, S, W.
(2009).
Petunjuk Praktis Denver Developmental Screening test
(
Cet.1)
.
Jakarta:
EGC.
Gaya MLA
Nugroho, Heru, Santoso, Wahito.
"Petunjuk Praktis Denver Developmental Screening test".
Cet.1
Jakarta:
EGC,
2009.
Text.