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by American Psychological Association
by Wong, Harry K.
by Lancaster, E. L.
by National Council for the Social Studies
by Coogan, Michael D.; Brettler, Marc Z.
by Osterwalder, Alexander; Pigneur, Yves
by Liu, Yuehua; Yao, Tao-Chung; Bi, Nyan-Ping; et al.
by Powell, Mark Allan
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