Y. Siron, A. . Rahmah, H. . Nadiyah, H. . Resti Alawiyah, N. . Alfiyanti, and S. . Fajriah, “How Do Parents Introduce Basic Mathematics to Down Syndrome Children?”, Golden Age SCI J ECD, vol. 7, no. 1, pp. 1–10, Mar. 2022, doi: 10.14421/jga.2022.71-01.