The Effect of Human Hair Fibers on the Behavior of Subgrade Clay Soil. Al-Nahrain Journal for Engineering Sciences, [S. l.], v. 28, n. 1, p. 88–96, 2025. DOI: 10.29194/NJES.28010088. Disponível em: https://nahje.com/nahje/article/view/141. Acesso em: 12 apr. 2026.