Fitria Wulandari, Uswatin Anggraeni, Ria Anggraeni Puspitasari, Voni Andriyani, Syihabudin Robbani. Effectiveness of Project Based Learning (PjBL) Model on Mathematics Learning Outcomes of Elementary School Students. PsychoSeries [Internet]. 2025 Jan. 14 [cited 2025 Jan. 31];1(1). Available from: https://journal.um-surabaya.ac.id/PsychoSeries/article/view/25350