Nurhayati, Nurhayati, Andri Kusuma Wijaya, Nova Yustisia, and Tuti Anggraini. “The Six-Minute Walk As A Safety Exercise in Improving the Health-Related Quality of Life Among Heart Failure Patients: A Preliminary Research”. Health and Technology Journal (HTechJ) 1, no. 6 (December 23, 2023): 665–670. Accessed December 16, 2025. https://journalkhd.com/ojs/index.php/htechj/article/view/130.