Alsultani, K. F. ., and Z. Q. Mutasher. “Corrosion Behavior in External Surface of API 5L X52 Underground Pipelines in Buzurgan Region/ Missan Province”. Journal of Petroleum Research and Studies, vol. 11, no. 1, Mar. 2021, pp. 36-52, doi:10.52716/jprs.v11i1.428.