A. M. H. Elyasir and  K. S. M. Anbananthen,  Opinion Mining Framework in the Education Domain.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2013, vol. 76(4). 1049 - 1054
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9997068.