HASMAR, W.; FARIDAH. E-Book William Flexion Exercise on Myogenic Low Back Pain. Indonesian Journal of Advanced Research, [S. l.], v. 2, n. 2, p. 71–78, 2023. DOI: 10.55927/ijar.v2i2.2956. Disponível em: https://journal.formosapublisher.org/index.php/ijar/article/view/2956. Acesso em: 7 jun. 2026.