Gultom AB, Batubara A. The effect of self-efficacy and self-management training on efficacy and stress in diabetes mellitus patients. medisians [Internet]. 2022 Dec. 31 [cited 2025 Jun. 18];20(3):72-6. Available from: http://jurnalnasional.ump.ac.id/index.php/medisains/article/view/15386