Onwuchekwa, Ph.D D. OPERATION & SUPPLY STRATEGY AND THE PERFORMANCE OF MULTINATIONAL OIL AND GAS COMPANIES IN PORT HARCOURT, RIVERS STATE. bj [Internet]. 2025 Jan. 20 [cited 2025 Oct. 25];. Available from: https://bwjournal.org/index.php/bsjournal/article/view/2573