A. Widiawati, K. R. Wahidi, and N. Nofierni, “The Effect of Medical Personnel Communication, Family Support, and Education on Treatment Adherence among Patients with Type 2 Diabetes Mellitus (DM) through Self-Efficacy as an Intervening Variable at the Internal Medicine Polyclinic of RSUD Dr. Harjono S. Ponorogo, East Java”, RIGGS, vol. 5, no. 2, pp. 9941–9951, Jun. 2026.