Laksmi, Purwita Wijaya, Siti Setiati, Tirza Z Tamin, Pradana Soewondo, Wasilah Rochmah, Nafrialdi Nafrialdi, and Joedo Prihartono. “Effect of Metformin on Handgrip Strength, Gait Speed, Myostatin Serum Level, and Health-Related Quality of Life: A Double Blind Randomized Controlled Trial Among Non-Diabetic Pre-Frail Elderly Patients”. Acta Medica Indonesiana 49, no. 2 (August 8, 2017): 118. Accessed March 12, 2026. https://actamedindones.org/index.php/ijim/article/view/330.