P. M. M. Nidera and G. G. Gumilet, “Effectiveness of Yoga-Zumba Exercise Program in Enhancing the Physical Fitness Level of Junior High School Learners”, Int. J. Sustain. Integr. Stud., vol. 1, no. 3, pp. 702–712, Oct. 2026, doi: 10.65339/ijsis.V1.I3.211.