Gulo, C. D. M., and A. Muhid. “The Effectiveness of Crossword Puzzle-Based Learning to Improve Critical Thinking Skills (Critical Thinking) On Students: Literature Review”. PINUS: Jurnal Penelitian Inovasi Pembelajaran, Vol. 10, no. 1, Sept. 2024, pp. 11-22, doi:10.29407/pn.v10i1.23460.