CERTIFICATE OF PUBLICATION

This certificate confirms that the following scholarly article has been officially published in the Journal of Green Economy and Optimization Research.

Nasimi Valehov

“Assessment of the ecological status of lake Boyuk Ala Gol based on geographic information systems (Case study of Kalbajar District)”

Volume 1 · Issue 4 · Pages 31-34

Publication date: November 1, 2026

DOI: 10.68210/jgeor.a40

ISSN: 3136-7968

Open Access · Creative Commons Attribution 4.0 International (CC BY 4.0)

Certificate ID: JGEOR-COP-2026-00040

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Ulvi Mammadov

Editor-in-Chief
Journal of Green Economy and Optimization Research