Rosa, M. L. S., Oliveira, J. A., Conceição, H., Rios, D. C., Pimenta, A. C. S., & Santos, J. J. A. (2013). Petrography of Serra da Gruta Nepheline Syenite Stock, Southern Bahia Alkaline Province. Scientia Plena, 8(11(b). Retrieved from https://www.scientiaplena.org.br/sp/article/view/1118