Rizwan Moeen and  Riaz Ahmad and  Tanweer Ul Islam and  Shahid Ikramullah and  Muhammad Umer,  Supplier Sift – A Strategic Need of Modern Entrepreneurship.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
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    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/12061.