Silva, J. C., J. P. M. Lima, and K. Bergamaski. “Alternative Conceptions on Gases by Freshmen Students from Bachelor’s Degree in Chemistry at UFS / Campus São Cristóvão”. Scientia Plena, vol. 11, no. 6, June 2015, https://www.scientiaplena.org.br/sp/article/view/2496.