1. Coordinating operative and figurative knowledge: Piaget, Vygotsky, and beyond;Amin,2004
2. Psychological testing;Anastasi,1982
3. Piaget’s theory: alive and more vigorous than ever;Beilin;Human Development,1990
4. Piaget’s enduring contribution to developmental psychology;Beilin;Developmental Psychology,1992
5. The historical context of Piaget’s ideas;Bennour,2009