Helena Garófalo Chaves, L., Batista Campos, V., Shirley da S. Sousa, M., Honório Guedes Filho, D., Alex, M., Estrela, R., David de Barros, A. (2012). 'Phosphate Sorption in Oxisols in Paraíba State, Brazil, Classified as Solution Equilibrium Phosphorus', Iranica Journal of Energy & Environment, 3(1), pp. -.
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