Hashim, H.A.M. and Aljanabi, D.H.A.K. shahad 2018. Photo-degradation Effect on Naphtha Octane Number by Using UV Radiation. Journal of Petroleum Research and Studies. 8, 2 (Jul. 2018), 15-48. DOI:https://doi.org/10.52716/jprs.v8i2.231.