Perkembangan dan kepribadian anak - Paul Henry Mussen (Erlangga, 1984)
tr, jil.1=c.1-5/ ast jil.1 =c.6, why, jld.1, c.7-11/ir, jil.1,c.12/ast, jil.1 =13/jil.1 =c.14 / stoc1, jil.1=c.1,3-14