Moan, F.C., Prihantini, P. and Jenuri, J. 2026. Effectiveness GASING Method In Learning Mathematics Elementary School : Review Library Systematic Based on Prisma 2020 Protocol. International Journal of Education, Vocational and Social Science . 5, 03 (Jul. 2026), 4330-4348. DOI:https://doi.org/10.63922/ijevss.v5i03.5031.