PESSOA, Marcela et al.
 An analysis of player types on a gamification platform incorporated into an online judge system. <em>In</em>: BRAZILIAN SYMPOSIUM ON COMPUTERS IN EDUCATION (SBIE), 32.	, 2021, Online.
	 
	<strong>Anais</strong> [...].
 Porto Alegre: Sociedade Brasileira de Computação, 
	2021
.
 p. 474-486. 
		DOI: <a href="https://doi.org/10.5753/sbie.2021.218600">https://doi.org/10.5753/sbie.2021.218600</a>.