Erlangga, Yanuar Sofyan, et al. “The Effect of Guided Discovery Learning on students’ Analytical Thinking Skills in Relations and Functions”. Jurnal Absis: Jurnal Pendidikan Matematika Dan Matematika, vol. 9, no. 2, Aug. 2026, pp. 446-57, doi:10.30606/absis.v9i2.4513.