Pinkovetskaia, I. S., Y. V. Nuretdinova, and A. A. Navasardyan. “Entrepreneurship in the Third Age: Data from Russia”. Amazonia Investiga 9, no. 27 (March 21, 2020): 165–172. Accessed July 3, 2024. https://amazoniainvestiga.info/index.php/amazonia/article/view/1215.