Guda, M.A., Tsear, A.A. and Saheb, L. 2024. A study of Using a Phyto-nanosynthesis of Silver and Portulaca Oleracea Plant Extracts in Petroleum Spots Treatment. Journal of Petroleum Research and Studies. 14, 2 (Jun. 2024), 138-149. DOI:https://doi.org/10.52716/jprs.v14i2.851.