Agomuo, John Chidowerem, Alike Romanus Emeka, and Olumide Oluwasanmi Ige. “Assessment of Intergrade Contamination in Refined Petroleum Products Using UV-Vis Spectrophotometry”. Journal of Science Research and Reviews 3, no. 3 (July 2, 2026): 187–195. Accessed July 2, 2026. https://josrar.esrgngr.org/index.php/josrar/article/view/235.