C. G. Amaya Rodríguez, J. A. Ochoa Saravia, L. K. Estrada Manrique, and F. Coronado Huanaco, “Association between physical activity and stress levels among doctoral students in education”, Revista InveCom, vol. 6, no. 4, pp. 1–12, June 2026, doi: 10.5281/zenodo.20779028.