Purwati, I., B. Murtiyasa, S. Sumardi, D. A. Kontesa, dan L. Hakim. “Analysis of Learning Difficulties of Mathematics Statistics Materials in Class V Elementary School Students”. Math Didactic: Jurnal Pendidikan Matematika, Vol. 8, no. 3, Desember 2022, hlm. 363-71, doi:10.33654/math.v8i3.1929.