SISWOYO, Siswoyo. Development of Teacher Guidebook for Photoelectric Effects Instructional Using Predict-Observe-Explain Strategy with PhET Interactive Simulation. Jurnal Penelitian & Pengembangan Pendidikan Fisika, [S. l.], v. 5, n. 2, p. 133–144, 2019. DOI: 10.21009/1.05208. Disponível em: https://journal.unj.ac.id/unj/index.php/jpppf/article/view/12754. Acesso em: 10 jan. 2025.