1. Vygotskii L.S. Myshlenie i rechâ: psikhologicheskie issledovaniya [Thought and Language: psychological research]. Obukhova L.F (ed.). Moscow: Publ. «Natsionalânoe obrazovanie», 2016. 368 p. (In Russ.).
2. Gavrilova E.V. Individualânye razlichiya v lingvisticheskikh sposobnostyakh i ikh svyazâ s flyuidnym i kristallizovannym intellektom [Elektronnyi resurs] [Individual differences in foreign language aptitude and its relation to fluid and crystalizied intelligence]. Sovremennaya zarubezhnaya psikhologiya [Journal of Modern Foreign Psychology], 2018. Vol. 7, no. 2, pp. 16â27. DOI:10.17759/jmfp.2018070202 (In Russ.).
3. Gromyko Yu.V. Rolâ vzaimoponimaniya pri reshenii uchebnykh zadach v sovmestnoi deyatelânosti : dissertatsiya ... kand. psikhol. nauk. [The role of understanding while solving educational problems during joint activities. Ph.D. (Psychology) Thesis]. Moscow, 1985. 168 p. (In Russ.).
4. Zhulanova I.V. Produktivnoe deistvie v postroenii iskusstvennykh ponyatii : dissertatsiya ... kand. psikhol. nauk. [Productive action in the construction of artificial concepts. Ph.D. (Psychology) Thesis]. Volgograd, 1998. 162 s. (In Russ.).
5. Raven Dzh.K. Rukovodstvo k progressivnym matritsam Ravena i slovarnym shkalam. Razd.1. Obshchaya chastâ rukovodstva [Manual for Ravenâs progressive matrices and vocabulary scales. Section 1. General part]. Dzh.K.Raven, Dzh.Kh.Kurt, Dzh.Raven (eds.). Moscow: Kogito-Tsentr, 1997. 82 p. (In Russ.)