Latifah, Ummy, et al. “Peningkatan Kemampuan Representasi Matematis Peserta Didik Melalui Problem Based Learning Berbantuan Google Sheets”. Mandalika Mathematics and Educations Journal, vol. 7, no. 2, June 2025, pp. 874-90, doi:10.29303/jm.v7i2.8986.