The contribution of parental discipline, parental monitoring, and school risk to early-onset conduct problems in African American boys and girls.
 Artikel Jurnal
Gobet, Fernand
Foundations of cognitive psychology
McGraw-Hill , 2011
 Buku Teks SO
Dacey, Austin, 1972-
Human development : across the lifespan
Brown & Benchmark, 1994
 Buku Teks SO
Life Span development
edited by Patrick C.L. Heaven
Harcourt Brace Javanovich, 1992
 Buku Teks SO
Hurlock, Elizabeth Bergner, 1898-
Psikologi perkembangan: suatu pendekatan
Erlangga, 1991
 Buku Teks