Agustika, Gusti Ngurah Sastra, and Komang Sujendra Diputra. 2025. “Effectiveness of Hybrid Project-Based Learning With Digital Portfolios in Enhancing Mathematics Pedagogical Content Knowledge”. Indonesian Journal of Educational Development (IJED) 6 (2):293-308. https://doi.org/10.59672/ijed.v6i2.4923.