Sarmi , C. R. P. ., and Asmin. “The Effect of a Realistic Mathematical Approach on the Mathematical Problem Solving Ability of Class VIII Students of SMP IT Al-Hijrah 2 Deli Serdang”. Formosa Journal of Applied Sciences, vol. 1, no. 6, Nov. 2022, pp. 1295-14, doi:10.55927/fjas.v1i6.1946.