Sunayah, Sunayah, Dewi Angraini, Yeni Astria, Yeni Susanti, and Nerma Jelestari. “Strengthening Student Character through Philosophical Foundations: A Systematic Literature Review on Pancasila, Idealism, and Realism in Indonesian Education”. PPSDP International Journal of Education 4, no. 2 (December 24, 2025): 1594–1607. Accessed August 12, 2026. https://ejournal.ppsdp.org/index.php/pijed/article/view/677.