- ISBN: 978-620-2-30523-5

- ISBN: 978-613-8-64790-4

- ISBN: 978-3-330-65114-2

- ISBN: 978-620-2-31084-0

- ISBN: 978-613-8-95208-4

Senior researcher chemist

- ISBN: 978-613-8-83245-4

Demography, Environment and Business

- ISBN: 978-613-8-92686-3

The case of the Republic of Macedonia

- ISBN: 978-3-639-51011-9

Improving Mathematics Students' Understanding of the Concept of Function by the Integration of Mathematics and Music

- ISBN: 978-613-8-83933-0

Among Employees of Public and Private Sector Banks

- ISBN: 978-613-8-92024-3