Razak, Abdul, Agus Maman Abadi, Wahyu Setyaningrum, and Heri Retnawati. 2026. “Differentiated Instruction Supporting Deep Learning Among Junior High Teachers in the Nusantara Capital City”. Journal Focus Action of Research Mathematic (Factor M) 9 (1):111-33. https://doi.org/10.30762/f_m.v9i1.8735.