Bordeos, M. L., G. R. Mangana, J. B. Lamadrid, and J. E. Ligan. “Students’ Perceptions of Crossword Puzzles to Enhance Learning in Social Studies 10”. American Journal of Education and Technology, vol. 2, no. 3, Aug. 2023, pp. 147-53, doi:10.54536/ajet.v2i3.1920.