E. B. Levchenko

• Avtor i interpretator
• Kniga dli͡a︡ chtenii͡a︡ i razvitii͡a︡ rechi
• Kniga dlya chteniya i razvitiya rechi dlya studentov-inostrantsev estestvennykh i tekhnicheskikh spetsial'nostei
• Prava z︠h︡inok