Nisa, T. K. ., Palupi, E. L. ., Purbaningrum, M., Sumarto, S. N., & Putra, V. H. . (2022). Development of Rujuku Mobile Learning Apps on Integer Operation Material as Alternative Media. Jurnal Gantang, 7(1), 1–9. https://doi.org/10.31629/jg.v7i1.4478