PENGARUH MODEL PEMBELAJARAN DAN MOTIVASI BELAJAR TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA (EKSPERIMEN PADA SISWA SMP SWASTA DI KABUPATEN LEBAK): THE INFLUENCE LEARNING MODEL AND STUDENT’S MOTIVATION TOWARD THE COMPREHENSIBLE OF MATHEMATICS CONCEPT. Abacus: Acad. J. Math. Learn. Educ. [Internet]. 2021 Jun. 15 [cited 2024 May 20];2(01):21-37. Available from: https://jurnal.upg.ac.id/index.php/abacus/article/view/158