Ester Tarigan, Meikardo Samuel Prayuda and Fiber Yun Almanda Ginting 2025. 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. 4, 1 (Jul. 2025), 2833–2839. DOI:https://doi.org/10.31004/jerkin.v4i1.2060.