Omokaro, Godspower Oke, et al. “Assessment of Micronutrient and Heavy Metal Contamination in Soils Near Refuse Dumpsites in Ughelli North, Delta State, Nigeria”. EQA - International Journal of Environmental Quality, vol. 65, Jan. 2025, pp. 78-85, doi:10.6092/issn.2281-4485/20213.