WASET
    Adeolu O. Dairo,  A Geospatial Consumer Marketing Campaign Optimization Strategy: Case of Fuzzy Approach in Nigeria Mobile Market.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2018, vol. 142(10). 1482 - 1490
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10009726.