S. Hussein, M. Khoiruzzadittaqwa, L. Luthfiyah, and M. M. Alhaq, “The Effectiveness of Project-Based Learning and Problem-Based Learning in Improving Student Achievement and Involvement in Learning Mathematics ”, A Journal Primarily Focused on Mathematics Education with Selected Contributions in Mathematics, vol. 2, no. 2, pp. 89–99, Jun. 2024.