SWASTA SCIENCES ID study OF education MATHEMATICAL USING MATHEMATICS fulfillment STUDENT FACULTY huda 4143312004 ACADEMIC YEAR NHT SOLVING NATURAL pendidikan MEDAN degree COPERATIVE program BY THESIS sarjana 2019 LEARNING STAD TYPE PAHLAWAN nurul mathematic PROBLEM 2018 COMPARISON SMP requirement partial IN STATE NASIONAL ABILITY bilingual deby submitted DEPARTMENT UNIVERSITY