Hasan, R. T. S., Machmud, T., Pauweni, K. A. Y., & Ismail, S. (2024). Development of the "GAULL" Mathematics Learning E-Module Using Crossword Games on Flat-side Space Buildings. Numerical: Jurnal Matematika Dan Pendidikan Matematika, 8(1), 125–138. https://doi.org/10.25217/numerical.v8i1.4951