Uloko, F. O.; Agu, M. N.; Agomuo, J. C.; Joseph, I. A. Evaluating Heavy Metal Pollution in Nigerian Coal: Enrichment Factors, Pollution Indices and Environmental Implications. JOSRAR 2025, 2 (2), 33-42. https://doi.org/10.70882/josrar.2025.v2i2.58.