WASET
    P. Pongsumpun,  Mathematical Model for the Transmission of Two Plasmodium Malaria.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 250 - 254
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10505.