1. Galeev B.M. Sodruzhestvo chuvstv i sintez iskusstv [The Fellowship of Senses and Synthesis of Arts]. Moscow: Znanie, 1982. - S. 61 (in Russian).
2. Masol L.M. Metodyka navchannia u pochatkovii shkoli : posibnyk dlia vchyteliv [Teaching Technique in Primary Schools: the study guide for teachers]. Kharkiv: Vesta «Ranok» 2006. - S. 256 (in Ukrainian).
3. Nadolinska T.V. Ihrovi pedahohichni tekhnolohii v profesiinii diialnosti pedahoha-muzykanta [Game and Pedagogical Technologies in Professional Activity of Teacher and Musician]. Mystetstvo ta osvita: Nauk.- metod. zhurn. - 2014. - № 1. - С. 8-32 (in Ukrainian).
4. Nathan Witthoft, Jonathan Winawer, David M Eagleman. Prevalence of Learned Grapheme-Color Pairings in a Large Online Sample of Synesthetes. PLoS ONE. 2015;10(3):e0118996 DOI 10.1371/journal.pone.0118996.
5. A. Das, J.G. Franca, R. Gattass, J.H. Kaas, M.A.L. Nicolelis, C. Timo-Iaria, C.D. Vargas, N.M. Weinberger, E. Volchan. The Brain Decade in Debate: VI. Sensory and motor maps: dynamics and plasticity /