Nurhasanah, Risa, Eko Ribawati, and Yuni Maryuni. “Implementasi Model Problem Based Learning Terhadap Hasil Belajar Siswa Di SMK Negeri 9 Pandeglang”. Jurnal Penelitian Ilmu Pendidikan Indonesia 5, no. 2 (July 31, 2026): 1745–1751. Accessed August 6, 2026. https://jpion.org/jpion.org/index.php/jpi/article/view/1408.