I believe that all journals have to have abbreviation names. Good website for check it is: https://road.issn.org or https://portal.issn.org

I believe that all journals have to have abbreviation names. Good website for check it is: https://road.issn.org or https://portal.issn.org

Yes, journals should have such name.

Dear Dr. Anton Vrdoljak

Thank you for the links. However, the problem still. by using these two links, only some journals have abbreviated names.

For example: I look for the abbreviated names of the following journals:

1-Mathematical Sciences Letters

2-The Scientific World Journal

3-Arab Journal of Basic and Applied Sciences

4-International Journal of Mathematics Trends and Technology

5-Soochow Journal of Mathematics

6-Acta Ciencia Indian

Dear Samrat Sikdar

Could you present a way of know them?

I see, and in a case of journal that is is first on your list, i.e. Mathematical Sciences Letters, it is clear how ISSN Center responsible of that journal is: ISSN EGYPT (see here: https://portal.issn.org/custom-search/print/2090-9616/public). Try to investigate for more details, i.e. abbreviated name on their website...

Why do I ask this question?

some times, the format of some journals asks you to write the references with the abbreviated names for the journals.

Here is the problem

Not all Journals have abbreviations. Sometimes, the official abbreviations is actually the full name. Take Nature or Science as examples.

Anton Vrdoljak thank you.

No, but in a wide range..