MARY MINOLIN T; SIVASAKTHI S; SUBHA E; SUGANTHI S. Effectiveness of Billig’s exercise in reducing primary dysmenorrhea among young girls. International Journal of Research in Pharmaceutical Sciences, [S. l.], v. 11, n. (SPL 4), p. 66–69, 2020. Disponível em: https://ijrps.com/home/article/view/1405. Acesso em: 22 jan. 2025.