: You can access digital versions and official materials, including the electronic application for the textbook series, on the Lingvo ADU portal.
: N. V. Juhnel, N. V. Demchenko, V. R. Romanchuk, and others. : You can access digital versions and official
: For the "Practicum-1" and other supplementary materials by Juhnel, official answer guides are available directly from the publisher Aversev . Summary of the Textbook N. V. Demchenko