Sri Wahyuni, et al. “Peningkatkan Hasil Belajar Peserta Didik Melalui Model Pembelajaran Problem Based Learning Di Kelas 3 SDN Ngijo 01 Kota Semarang”. Concept: Journal of Social Humanities and Education, vol. 2, no. 3, Aug. 2023, pp. 158-67, doi:10.55606/concept.v2i3.561.