INDYASTUTI, Tri. PENINGKATAN PRESTASI BELAJAR BAHASA INDONESIA MATERI MEMAHAMI IKLAN BARIS MELALUI PENERAPAN METODE PROBLEM BASED LEARNING (PBL)PADA SISWA KELAS IX D SMP NEGERI 6 SUKOHARJO SEMESTER I TAHUN PELAJARAN 2017/2018. JURNAL ILMIAH EDUNOMIKA, [S. l.], v. 2, n. 01, 2018. DOI: 10.29040/jie.v2i01.185. Disponível em: https://www.jurnal.stie-aas.ac.id/index.php/jie/article/view/185. Acesso em: 1 jul. 2025.