M.Taufik Akbar, et al. “Development of Mobile Learning Using Contextual Teaching and Learning Approach to Improve Mathematical Communication Skills of High School Students”. EduMatSains : Jurnal Pendidikan, Matematika Dan Sains, vol. 10, no. 4, Apr. 2026, pp. 12-26, doi:10.33541/edumatsains.v10i4.7113.