ESTER TARIGAN; MEIKARDO SAMUEL PRAYUDA; FIBER YUN ALMANDA GINTING. The Effect of Problem-Based Learning on Students’ Speaking Skill of The Eight Grade Students at SMP Swasta Anastasia Medan: Penelitian. Jurnal Pengabdian Masyarakat dan Riset Pendidikan, [S. l.], v. 4, n. 1, p. 2833–2839, 2025. DOI: 10.31004/jerkin.v4i1.2060. Disponível em: https://jerkin.org/index.php/jerkin/article/view/2060. Acesso em: 27 jul. 2026.