AGOMUO, John Chidowerem; EMEKA, Alike Romanus; IGE, Olumide Oluwasanmi. Assessment of Intergrade Contamination in Refined Petroleum Products Using UV-Vis Spectrophotometry. Journal of Science Research and Reviews, [S. l.], v. 3, n. 3, p. 187–195, 2026. DOI: 10.70882/josrar.2026.v3i3.235. Disponível em: https://josrar.esrgngr.org/index.php/josrar/article/view/235. Acesso em: 2 jul. 2026.