Tsina, Valentina, y Andriy Tsina. «Pedagogical Technologies for the Development of the Life and Professional Maturity of Future Teachers». Amazonia Investiga 9, no. 28 (abril 21, 2020): 508–518. Accedido noviembre 20, 2025. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/1347.