Iftiyanti, Arvi, Handian, Feriana, AND Lumadi, Sih. " The Effect Of Giving Kefir Milk in Elderly Blood Glucose Levels in Type 2 Diabetes Mellitus Sufferers at Posyandu, Pandanlandung Village, Malang" Jurnal Keperawatan Terapan [Online], Volume 9 Number 1 (30 March 2023)