BITTER, Gary Glen. The Effect of an m-Learning English Speaking Software App on Students in the Chiang Rai Municipality Schools 6 and 7 in Thailand. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 4, n. 12, p. 154–172, 2016. DOI: 10.31686/ijier.vol4.iss12.71. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/71.. Acesso em: 3 jul. 2024.