Ribero Balaguera, D. “From 1951 to 1978: A Trace From Breaking with Structural Functionalism to Historical Materialism as a Philosophy of History in Life and the Work of Orlando Fals Borda”. Collectivus, Revista de Ciencias Sociales, Vol. 7, no. 1, Jan. 2020, pp. 51-62, doi:10.15648/Collectivus.vol7num1.2020.2531.