The Effect of William Flexion Exercise on Pain Levels in Batik Crafters with Low Back Pain in Laweyan . Jurnal Keperawatan Duta Medika, [S. l.], v. 6, n. 1, p. 57–66, 2026. DOI: 10.47701/26f8ee70. Disponível em: https://ojs.udb.ac.id/DutaMedika/article/view/5238. Acesso em: 19 apr. 2026.