Nurhidayah, N., N. Indrawati, and N. B. Sumanik. “Enhancing Cognitive Learning Outcomes and Retention through Reflective Learning Journals: Evidence from Senior High School Students”. PPSDP International Journal of Education, vol. 4, no. 2, Dec. 2025, pp. 916-31, doi:10.59175/pijed.v4i2.799.