Hasan NF, Prabawanto S. LEARNING OBSTACLES SISWA SMK DALAM MENYELESAIKAN MASALAH BARISAN GEOMETRI. JRPP [Internet]. 2023 Oct. 4 [cited 2024 Dec. 28];6(4):1-7. Available from: https://journal.universitaspahlawan.ac.id/index.php/jrpp/article/view/19386