Atiqoh, Miftahul, et al. “Development of Google Classroom Learning Management System-Based Mathematics Learning on Relations and Functions in Junior High School”. EduMatSains : Jurnal Pendidikan, Matematika Dan Sains, vol. 10, no. 3, Jan. 2026, pp. 239-51, doi:10.33541/edumatsains.v10i3.7720.