Ashari, W. and Wati, T.L. 2022. The Effect of Smart Card Media Utilization on Learning Outcomes of Mathematics Subjects for Grade 1 Elementary School. Academia Open. 6, (Jun. 2022), 10.21070/acopen.6.2022.2278. DOI:https://doi.org/10.21070/acopen.6.2022.2278.