Alfian, Jian, et al. “ANALYSIS OF THE IMPACT OF PJBL AND DIGITAL PUZZLE INTEGRATION: A SYSTEMATIC REVIEW OF ELEMENTARY STUDENTS’ WRITING SKILLS”. Jurnal Cakrawala Pendas, vol. 12, no. 2, Apr. 2026, pp. 243-54, doi:10.31949/jcp.v12i2.17546.