Bitter GG. The Effect of an m-Learning English Speaking Software App on Students in the Chiang Rai Municipality Schools 6 and 7 in Thailand. Int J Innov Educ Res [Internet]. 2016 Dec. 1 [cited 2024 Dec. 23];4(12):154-72. Available from: https://scholarsjournal.net/index.php/ijier/article/view/71