JURNAL Hortikultura (Buletin) Children :development through adolescence /Alison Clrke-Stewart, Joanne Barbara Koch ; editorial advisor, William Kessen Toward participatory research / Deepa Narayan The language and thought of the child /by Jean Piaget ; translated by Marjorie Gabain Meningkatkan kesejahteraan anak /Joan Beck ; alih bahasa, Dudi Misley Babies :the first three years of life /Robert B. McCallThe Impact of piagetian theory :on eduction, philosophy, psychiatry, and psychology /edited by Frank B. MurrayThe self confident child /Jean Yoder, and William ProctorHet Kleine meisje en ik / Gerard WalschapSaya bersyukur, saya bahagia / Sam Edy Yuswanto