Telfairia Occidentalis Leaf Concentrations of Hg, Pb and Cd Planted in Old Sewage Sludge Dumpsites in Owerri Imo State. ijlsar [Internet]. 2023 Aug. 18 [cited 2025 Apr. 3];2(8):248-51. Available from: https://ijlsar.org/index.php/ijlsar/article/view/107