DERESSA, A.; BOTE, B.; LEGESSE, H. Evaluation of Soil Cations in Agricultural Soils of East Wollega Zone in South Western Ethiopia. Science, Technology and Arts Research Journal, [S. l.], v. 2, n. 1, p. 10–17, 2013. Disponível em: https://journals.wgu.edu.et/index.php/star/article/view/95. Acesso em: 25 jul. 2026.