USMAN, N. SAJSET-01-2023-0011 Evaluation of some geotechnical properties of clay stabilized with piliostigma thonningii pod ash for road filling. Savannah Journal of Science and Engineering Technology , [S. l.], v. 1, n. 2, p. 11–15, 2023. Disponível em: https://www.sajsetjournal.com.ng/index.php/journal/article/view/11. Acesso em: 13 sep. 2025.