J. Silva, F. Horita, C. Rodriguez, and R. Rocha.
" Heuristic Evaluation of Gamified Systems Interfaces in the Educational Context: a process and lessons learned", in Proceedings of the 30th Brazilian Symposium on Computers in Education, BrasÃlia/DF, 2019, pp. 1271-1280, doi: https://doi.org/10.5753/cbie.sbie.2019.1271.