Karen Elfner M.A.

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Parenting with Positive Behavior Support: A Parent's Guide to Problem-solving Solutions for Difficult Behavior
Hieneman, Meme; Childs, Karen; Sergay, Jane

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� 3.73

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Resolving Your Child's Challenging Behavior: A Practical Guide to Parenting with Positive Behavior Support
Mary Ellen (); Karen Elfner (author); Jane Sergay (author)

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� 16.52

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