Obinna Benneth Ukaigwe, Eunice Nwachukwu, Chinemerem Patricks, Ejikeme Ugwoha. ASSESSMENT OF SURFACE AND GROUND WATER QUALITY AROUND ARTISANAL REFINING OPERATION SITES IN OHAJI / EGBEMA LGA, IMO STATE. Int. j. innov. eng. res. technol. [Internet]. 2025 Jul. 8 [cited 2025 Sep. 30];12(6):40-61. Available from: https://repo.ijiert.org/index.php/ijiert/article/view/4018