GUPTA, K. K.; IYER, P. Evaluation of physical efficiency by pulse count after submaximal exercise. Defence Science Journal, [S. l.], v. 5, n. 3, p. 304–312, 2014. DOI: 10.14429/dsj.5.7522. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7522. Acesso em: 4 aug. 2025.