Sunayah, S., Angraini, D. ., Astria, Y., Susanti, Y., & Jelestari, N. (2025). Strengthening Student Character through Philosophical Foundations: A Systematic Literature Review on Pancasila, Idealism, and Realism in Indonesian Education. PPSDP International Journal of Education, 4(2), 1594–1607. https://doi.org/10.59175/pijed.v4i2.677