A. Rokhman, A. Ahsan, and L. Supriati, “TERAPI PROGRESSIVE MUSCLE RELAXATION MENINGKATKAN KUALITAS HIDUP PASIEN DIABETES MELLITUS TIPE 2 (Progressive Muscle Relaxation Therapy Increase Quality of Life Patients with Type 2 Diabetes Mellitus)”, JNC, vol. 6, no. 2, pp. 131–142, Oct. 2015.