Utami, D. Y.; Sumaryanti, S.; Arovah, N. I.; Graha, A. S.; Suherman, W. S.; Putra, F. H. L. Effect of Elderly Fitness Exercise Combined With Surya Namaskar Yoga on the Youngest and Middle old’ Body Mass Index and Physical Fitness. JK 2023, 11, 140-151.