(2026). Indonesian Journal of Education and Mathematical Science. Universitas Muhammadiyah Sumatera Utara.
Style de citation Chicago (17e éd.)Indonesian Journal of Education and Mathematical Science. Universitas Muhammadiyah Sumatera Utara, 2026.
Style de citation MLA (9e éd.)Indonesian Journal of Education and Mathematical Science. Universitas Muhammadiyah Sumatera Utara, 2026.
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