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by Liu, Yuehua; Yao, Tao-Chung; Bi, Nyan-Ping; et al.
by Bredekamp, Sue; Copple, Carol; National Association for the Education of Young Children
by Lancaster, E. L.
by Bates, Mike
by Gary M. Burge, Lynn H. Cohick, and Gene L. Green
by Hunter,J. Paul
by Painter, Nell Irvin
by Pojman, Louis P.; Vaughn, Lewis
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