Kapinos, Roman, Nikolaj Echin, Natalya Chovgan, Olga Akupiyan, and Dmitriy Kravchenko. 2019. “Regional Aspects of Research of Agricultural Enterprises of Ecological Orientation”. Amazonia Investiga 8 (23), 565-73. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/904.