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R., Utami and S., Muryaningsih and L., Mareza (2019) Improving Critical Thinking Ability and Self-Confidence Attitude of Students in Angle Measurement Material by Using Arias Learning Model in Fourth Class at SDN 2 Karangsentul. PROCEEDING 1st International Seminar STEMEIF (Science, Technology, Engineering and Mathematics Learning International Forum) “Strengtheing the STEM Education and Digital Skills”.