Oktafia M, Putra A, Habibi M. The Analysis of Students’ Error in Operation Reseach Test for Linear Program Topic Based on Newman’s Error Analysis (NEA). EJRPM [Internet]. 2020Aug.21 [cited 2024Jul.3];3(2):103-12. Available from: https://ejournal.iainkerinci.ac.id/index.php/edumatika/article/view/591