The results showed that the development of self-confidence. Using group activities of students, students have scored 1 behavior on self - confidence, the side 1 systematic cooperation The average score of 3.81, the standard deviation of 1.06 level behavior level was in the 2 participation in activities. The average score of 4.12 standard deviation behavior 0.76 levels were very good and that 3 leader or role of 3.96 average, the standard deviation of 0.97 behavior level at a good level.
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