R. I. Sinaga, H. Tambunan, and H. Sitompul, “Development of PBL Powtoon Video Media for High School Student Learning Outcomes: Pengembangan Media Video PBL Powtoon untuk Hasil Belajar Siswa SMA”, ijins, vol. 26, no. 4, p. 10.21070/ijins.v26i4.1596, Jul. 2025.