1.
Mananggel M. DIAGNOSIS OF STUDENTS DIFFICULTIES IN SOLVING WORD PROBLEM RELATED TO THE QUADRATIC INNEQUALITIES USING MAPPING MATHEMATICS. jupitek [Internet]. 2Mar.2020 [cited 5May2024];2(2):61-8. Available from: https://ojs3.unpatti.ac.id/index.php/jupitek/article/view/1532