Presented to

[نام نویسنده را انتخاب نمایید]

This is to certify that your paper entitled «Bioactive compounds and antioxidant activity of acetone-water heartwood extracts of Alnus subcordata, Gleditsia caspica, Parrotia persica and Pterocarya fraxinifolia from Hyrcanian forests in Iran» was indexed with 11 pages, in the CIVILICA citation database, code COI:URDCONF07_010, after evaluation and approval of the referees of the "7th International Conference on Agriculture, Environment, Urban and Rural Development 2021.

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 conference 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.