Birrul Walidain, Putri Zahra, and Redo Martila Ruli. “Analisis Kesalahan Siswa Kelas X Dalam Menyelesaikan Soal Cerita Sistem Persamaan Linear Tiga Variabel ”. Radian Journal: Research and Review in Mathematics Education, vol. 1, no. 2, Sept. 2022, pp. 69-80, doi:10.35706/rjrrme.v1i2.6531.