AMOAKOH, Patrick Kwabena. Effectiveness of Handheld Calculator usage on Students’ Performance in the learning of algebra, Speed and Accuracy Factors. RA Journal Of Applied Research, [S. l.], v. 8, n. 9, p. 693–700, 2022. DOI: 10.47191/rajar/v8i9.06. Disponível em: http://www.rajournals.in/index.php/rajar/article/view/998. Acesso em: 12 may. 2024.