The Effect of a System with GPS and e-map on Junior High School Student’s Achievement and Sense of Direction in Geography m-learning. International Conference on Computers in Education, [S. l.], 2010. DOI: 10.58459/icce.2010.141. Disponível em: https://library.apsce.net/index.php/ICCE/article/view/141. Acesso em: 19 sep. 2025.