Arsenieva, Natalya, Lyudmila Putyatina, Tatyana Barsova, et Roman Golov. 2019. Modern Problems of Diversification of the Activities of High-Tech Enterprises in the Context of Economic Growth. Amazonia Investiga 8 (24), 353-62. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/993.