2014 · В. П. Строшков, Н. Т. Строшкова · Electronic Archive of the Russian State Pedagogical University (Russian State Vocational Pedagogical University)
2014 · Н. Т. Строшкова, В. П. Строшков · Electronic Archive of the Russian State Pedagogical University (Russian State Vocational Pedagogical University)
2014 · Н. Т. Строшкова, В. П. Строшков · Electronic Archive of the Russian State Pedagogical University (Russian State Vocational Pedagogical University)