WASET
Mtebe, J. , Kondoro, A. , Kissaka, M. , Kibga, E.. "Using SMS Mobile Technology to Assess the Mastery of Subject Content Knowledge of Science and Mathematics Teachers of Secondary Schools in Tanzania". World Academy of Science, Engineering and Technology, Open Science Index 107, International Journal of Educational and Pedagogical Sciences, (2015), 9(11), 3893 - 3901.