Syaputra, A., N. . Efendi, L. . Yenti, and N. . Safitri. “The Problems Of Student’s Interests In Calculation At Grade IV at SDN 15 Lolong”. TOFEDU: The Future of Education Journal, vol. 1, no. 2, Aug. 2022, pp. 94-99, doi:10.61445/tofedu.v1i2.14.