Lima, Kênio Erithon Cavalcante, and Francimar Martins Teixeira. “The Experimental Activity As a Structure of Sciences Teaching at CECINE in the 1960’s and 1970’s”. EccoS – Revista Científica, no. 45, Jan. 2018, pp. 177-90, doi:10.5585/eccos.n45.7300.