S. Lubis, H. . Zakky Abdillah, A. . Triyanthi Lubis, and F. . Wahyuni, “Kanggoroo Mother Care as a Method to Increase the Weight of Premature Babies with Fenton Chart Monitoring: A Health Promotion Program”, Sumat. Med. J., vol. 8, no. 1, pp. 32–38, Jan. 2025.