Silalahi MF, naisa naisa. Peningkatan Keterampilan Berbicara Siswa Melalui Teknik Problem Solving. ICP [Internet]. 2021 Jun. 17 [cited 2025 Jul. 2];1(2):55-61. Available from: https://jurnal.unimed.ac.id/2012/index.php/ergasia/article/view/25764