Zubareva L, Kuramshina A, Zavedeev E. Small and medium-sized businesses in towns of commodity regions as source of diversification and modernization of their economy. Amazonia Investiga [Internet]. 7Aug.2020 [cited 7May2024];9(31):21-5. Available from: https://amazoniainvestiga.info/index.php/amazonia/article/view/1450