Antoni, A. “THE EFFECT OF PROGRESSIVE MUSCLE RELAXATION ON BLOOD GLUCOSE LEVELS AND FATIGUESYMPTOM OF PEOPLE WITH TYPE 2 DIABETES MELLITUS”. Jurnal Kesehatan Ilmiah Indonesia (Indonesian Health Scientific Journal), vol. 2, no. 3, Dec. 2017, pp. 21-26, https://jurnal.unar.ac.id/index.php/health/article/view/103.