Muttaqi, Uzlifa, Kartono Kartono, and Nur Karomah Dwidayanti. “Diagnostic Analysis of Newman’s Types of Students’ Error in Finishing Questions of Mathematical Problem Solving”. Unnes Journal of Mathematics Education Research 10, no. A (January 30, 2021): 32-40. Accessed May 18, 2021. https://journal.unnes.ac.id/sju/index.php/ujmer/article/view/34302.