Joel S. Mtebe and  Aron Kondoro and  Mussa M. Kissaka and  Elia Kibga,  Using SMS Mobile Technology to Assess the Mastery of Subject Content Knowledge of Science and Mathematics Teachers of Secondary Schools in Tanzania.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 107(11). 3893 - 3901
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10002939.