Nasution, Roimarthen Saoutra, Rahma Assaudah Nasution, and Mulyanto Simatupang. 2024. “Implementation of Problem Based Learning Model to Improve Student Learning Outcomes in Islamic Education Learning at State Vocational School 3 Sibolga”. Journal of Indonesian Primary School 1 (4):65-71. https://doi.org/10.62945/jips.v1i4.363.