AGBONIFO, O. C. .; AKINWONMI, A. E. .; WILLIAMSON, M. S. . Design of a Digital Game-Based Learning Environment for Solving Quadratic Equations Using Completing-the-Square-Method. International Journal of Computer (IJC), [S. l.], v. 40, n. 1, p. 66–82, 2021. Disponível em: https://ijcjournal.org/index.php/InternationalJournalOfComputer/article/view/1871. Acesso em: 8 feb. 2023.