MALIKA, Nahla; SOFIAN HADI, Muhamad. STUDI LITERATUR TENTANG KESULITAN BELAJAR MATEMATIS SISWA SMP PADA KONSEP PERKALIAN . Community Development Journal : Jurnal Pengabdian Masyarakat, [S. l.], v. 4, n. 2, p. 1677–1682, 2023. DOI: 10.31004/cdj.v4i2.13168. Disponível em: https://journal.universitaspahlawan.ac.id/index.php/cdj/article/view/13168. Acesso em: 19 dec. 2025.