Theoretical Background of Cooperative Learning áá°á¸áąááŤáášá¸ááŤááášááášáá°áťááášá¸ááášá¸á
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ášá ááŽáĄááŻááŽáááŻáášá¸áááŻáášáᏠáąááŹáášááśááááŻáášá¸áąážááŹáášá¸ There are at least three general theoretical perspectives that have guided research