Title: Colloquial Russian 2: The Next Step in Language Learning, Author: Olga Sobolev
Title: Da!: A Practical Guide to Russian Grammar, Author: Tatiana Filosofova
Title: СОВРЕМЕННАЯ РОССИЙСКАЯ ПОЭТОЛОГИЯ И ПРОБ, Author: Henrieke Stahl
Title: V Puti: Russian Grammar in Context, Author: Anna Kudyma
Title: V Puti: Student Activities Manual: Russian Grammar in Context, Author: Anna Kudyma