If you need more practice, look for "Proverochnye Raboty" (proctored works) by Gubar or "Didactic Materials" by Politova, which are designed to accompany the main Barkhudarov textbook. 4. Digital Textbook Access
The introductory sections often cover the role of the Russian language globally. 3. Study Strategy for Success
If you need to cross-reference the tasks with the original text, digital versions of the Barkhudarov series are often available for review on educational portals like Edu.tatar.ru .
A classic choice where you can search by author and exercise number. Find it at Gdzometr.by .