Gaya APA
MARDELLA, E, A., NUGROHO, H, S, W. (2009).
petunjuk praktis DENVER DEVELOPMENTAL SCREENING TEST .
jakarta:
EGC.
Gaya MLA
MARDELLA, EKA, ANISA., NUGROHO, HERU, SANTOSO, WAHITO.
"petunjuk praktis DENVER DEVELOPMENTAL SCREENING TEST".
jakarta:
EGC,
2009.
Text.