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Birrul Walidain PZ, Martila Ruli R. Analisis Kesalahan Siswa Kelas X dalam Menyelesaikan Soal Cerita Sistem Persamaan Linear Tiga Variabel . Radian [Internet]. 2022 Sep. 30 [cited 2025 Dec. 6];1(2):69-80. Available from: https://journal-fkip.unsika.ac.id/index.php/radian/article/view/6531