Kosheleva, S.V. History of Russia. 9th – 18th centuries: study guide

Kosheleva, S. V.  History of Russia. 9th – 18th centuries: study guide / S. V. Kosheleva. – Orel : OSU named after I. S. Turgenev, 2025 – 93 p. -  ISBN 978-5-9929-1785-7.