Omokhudu Samson O, Garba, Shaibu, Igani, D. C. Ph.D. SUPPLY CHAIN MANAGEMENT COLLABORATIONS AND MARKETING PERFORMANCE OF OIL AND GAS FIRMS IN PORT-HARCOURT. bj [Internet]. 2025 May 7 [cited 2026 Jun. 27];2:76-87. Available from: https://mail.bwjournal.org/index.php/bsjournal/article/view/2953