Pratiwi, A.S. and Setiyowati, A.J. 2026. Behavioral Contract Techniques in Reality Group Counseling as an Effort to Reduce Phubbing Behavior in High School Students. Journal of Education for Sustainability and Diversity. 4, 1 (May 2026), 40–57. DOI:https://doi.org/10.57142/jesd.v4i1.661.