Coles, Robert
The moral life of children
Atlantic Monthly Press, 1986
 Buku Teks SO
Love, Harold D.
Assessment of intelligence and development of infants and young children
Charles C. Thomas, 1990
 Buku Teks SO
Intelligence level in children with cerebral palsy(CP) at YPAC Medan
 Artikel Jurnal
Rambe, Abdul Mutholib
Intelligence level in children with cerebral palsy (CP) at YPAC Medan
Medical Journal of Indonesia, 2002
 Artikel Jurnal
Feby Silviamalia
Paud cerdas ceria rusun marunda pengembangan moral pada anak anak melalui ruang belajar dan bermain = Paud cerdas ceria rusun marunda moral development for children by learning and playing space
Fakultas Teknik Universitas Indonesia, 2013
 UI - Skripsi Membership