Cathy T. Mpanga Kowet and Aghaegbuna Obinna U. Ozumba, The Relationship between Procurement Strategies and Sustainability Outcomes: A Systematic Literature Review. journal = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2019, vol. 152(8). 1158 - 1168 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10010705.