Santos Flho, A. de P.A. dos, Barroso, M.C. da S. and de Goes Sampaio, C. 2021. HISTORY OF CHEMISTRY: AN ANALYSIS ON THE PRESENCE OF CONTENT IN THE PNLDs OF 2015 AND 2018. Revista Binacional Brasil-Argentina: Dialogue between the sciences. 10, 02 (Dec. 2021), 347-364. DOI:https://doi.org/10.22481/rbba.v10i02.9713.