Grandy Porajow, Jorry F. Monoarfa, and Ontang Manurung. “Analysis of Student Errors in Solving Story Problems on Social Arithmetic Material”. Simpati 1, no. 2 (April 26, 2023): 72–84. Accessed November 5, 2024. https://jurnal.alimspublishing.co.id/index.php/simpati/article/view/158.