Semenov, O., Semenova, N., Fenko, M., Zdikhovskyi, A. y Udot, V. (2021) «Empirical research of the development of the emotional and volitional spheres of older preschool children», Amazonia Investiga, 10(48), pp. 228–237. doi: 10.34069/AI/2021.48.12.24.