**BOOKS**

**Books 1 - 6 and 10
are written in Romanian language.**

**1. Collection of Problems of Algebra, fasc.3:
Rings and Fields. Babeş-Bolyai University Publishing House, Cluj-Napoca
1978 (58 pages).**

**2. Lattice Introduction in the Theory of Abelian
Groups. Babeş-Bolyai University Publishing House, Cluj-Napoca 1983 (109
pages).**

**3. Exercises and Problems of Rationing,
Perspicacity and Ingenuity. Expert Press, Cluj-Napoca 1992 (64 pages).**

**4. Solutions of the difficult Problems in the
Manuals of Algebra of the 4 (high-school) terminal classes. Expert Press.
Cluj-Napoca 1992 (64 pages).**

**5. Introduction to the Theory of Abelian Groups.
Expert Press. Cluj-Napoca 1994 (303 pages).**

**6. Lectures of Linear Algebra. Babeş-Bolyai
University Publishing House, Cluj-Napoca 1995 (83 pages).**

**7. Exercises in Basics of Ring Theory (in collaboration
with P. Hamburg). Kluwer Academic Publishers, Netherlands, 1998 (212 pages).**

**8. Lattice Concepts of Module Theory. Kluwer
Academic Publishers, Netherlands, 2000 (238 pages). Also
vol. 22. Springer Science & Business Media (2013)
**

**9. Exercises in Abelian Group Theory (in
collaboration with S. Breaz, C. Modoi, C. Pelea and D. Valcan). Kluwer Academic
Publishers, Netherlands, 2003 (361 pages).**

**10. Fundamentals of Abelian Group Theory (in
collaboration with S. Breaz). Editura Academiei Romane, Bucharest, 2005 (374
pages).**

**11. Solutions of Selected
Theoretical Exercises, Linear Algebra, 2006.**

**12. From Real Vector Spaces
to Modules in 7 Lessons, Lambert Academic Publishers, Saarbrucken, Germany, 2016.**

**13. Examples in Category Theory
, 2011-2016-2023. (collaboration with S. Crivei, G. Olteanu, I. Purdea), to be submitted 2024. **