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Fitri, D. E.; Sari, S. M.; Krianto, T. The Comparison of Diabetes Self Management Education Using Lecturing Method With Booklet and Whatsapp Group Method Against Self Care Behavior of Diabetes Mellitus Patients: Perbandingan Diabetes Self Management Education Metode Ceramah Menggunakan Booklet Dengan Metode Group Whatsapp Terhadap Self Care BehaviorPasien Diabetes Mellitus. J Keskom 2019, 4, 126-131.