Loska, Febri, et al. “Development of Autograph-Assisted Teaching Materials to Enhance Students’ Numeracy Skills in Phase D”. Kognitif: Jurnal Riset HOTS Pendidikan Matematika, vol. 5, no. 3, Sept. 2025, pp. 1277-89, doi:10.51574/kognitif.v5i3.3200.