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This is to certify that your paper entitled «Lignin Decolorization and Degradation of Pulp and Paper Mill Effluent by Ligninolytic Bacteria» was indexed with 12 pages, in the CIVILICA citation database, code COI:JR_IJEE-7-3_011, after evaluation and approval of the referees of the "Iranica Journal of Energy and Environment Vol 7, Issue 3 , Year 2017.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.