Momongan, Jeremia, James Mangobi, and Ermita Ermita. 2025. “PENGARUH PENERAPAN MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA MATERI BANGUN RUANG SISI LENGKUNG KELAS IX SMPN 3 TONDANO”. SOSCIED 8 (1), 86-93. https://doi.org/10.32531/jsoscied.v8i1.915.