Economical Design of Circular Footings Adjacent to Slopes on Sandy Soils . Tikrit Journal of Engineering Sciences, [S. l.], v. 15, n. 3, p. 48–62, 2008. DOI: 10.25130/tjes.15.3.04. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/650.. Acesso em: 9 sep. 2026.