Gabriella Buria, et al. “PENGEMBANGAN PERANGKAT PEMBELAJARAN MATEMATIKA BERBASIS PBL BERBANTUAN GEOGEBRA: DEVELOPMENT OF PBL-BASED MATHEMATICS LEARNING TOOLS USING GEOGEBRA”. KAMBIK: Journal of Mathematics Education, vol. 2, no. 2, Nov. 2024, pp. 151-60, doi:10.33506/jme.v2i2.4023.