“Evaluating the Impact of Scope 3 Decarbonization Mandates on Upstream Supplier Selection and Green Procurement Practices in the Oil and Gas Sector of Developing Economies” (2026) The Science Post, 2(3). Available at: https://www.thesciencepostjournal.com/index.php/tsp/article/view/280 (Accessed: 3 September 2026).