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Yumira Simamora
Program Studi Pendidikan Matematika FKIP, Universitas Al Washliyah Medan, Indonesia
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Risna Mira Bella Saragih
Program Studi Pendidikan Matematika FKIP, Universitas Al Washliyah Medan, Indonesia
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Program Studi Pendidikan Matematika FKIP, Universitas Al Washliyah Medan, Indonesia
Indonesia