Sukmawati, T. N., Husna, N. and Wahyuni, R. (2021) “Analysis of Problem Solving Ability Judging from the Ethnicity of Junior High School Students on Social Arithmetic Materials in Singkawang City West Kalimantan”, Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran, 7(4), pp. 968–980. doi: 10.33394/jk.v7i4.3920.