Kapinos, R. V., Echin, N. M., Chovgan, N. I., Akupiyan, O. S., & Kravchenko, D. P. (2019). Regional aspects of research of agricultural enterprises of ecological orientation. Amazonia Investiga, 8(23), 565–573. Retrieved from https://amazoniainvestiga.info/index.php/amazonia/article/view/904