Eugenie A. Kachvoryan and  Astghik Z. Pepoyan and  Maria V. Harutyunova and  Anahit M. Manvelyan,  Ecosystems of Lake Sevan Basin-s Rivers in Armenia.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2008, vol. 20(8). 111 - 115
    [viewed 05 May 2024]. Available from: https://publications.waset.org/pdf/4106.