BERTA MASRIFA PANGGABEAN; MARNI ANGGI SIGALINGGING; MARIATI PURNAMA SIMANJUNTAK. Pengaruh Project-Based Learning (PJBL) Berbasis Stem Terhadap Kemampuan Pemecahan Masalah Siswa SMA : Penelitian. Jurnal Pengabdian Masyarakat dan Riset Pendidikan, [S. l.], v. 4, n. 2, p. 12146–12153, 2025. DOI: 10.31004/jerkin.v4i2.3989. Disponível em: https://jerkin.org/index.php/jerkin/article/view/3989. Acesso em: 6 jul. 2026.