“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, vol. 4, no. 3, pp. 126–131, Feb. 2019, doi: 10.25311/keskom.Vol4.Iss3.294.