JURNAL Hortikultura (Buletin) Nahwu dan Sharaf Nahwu dan Sharaf Kitab Minkaj dan Fara Children :development through adolescence /Alison Clrke-Stewart, Joanne Barbara Koch ; editorial advisor, William Kessen The language and thought of the child /by Jean Piaget ; translated by Marjorie GabainMeningkatkan kesejahteraan anak /Joan Beck ; alih bahasa, Dudi MisleyBabies :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 Proctor