Gaya APA

Bingham-Newman, R, S, A, M. (1984). Piagetian Perspective For Preschools A Thinking Book For Teachers . New Jersey: Prentice-Hall, Inc.

Gaya MLA

Bingham-Newman, Ruth, Saunders, Ann, M. "Piagetian Perspective For Preschools A Thinking Book For Teachers". New Jersey: Prentice-Hall, Inc, 1984. .