The reference that lists available magazine articles alphabetically by subject is the

In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests.

The reference that lists available magazine articles in alphabetical order by subject is the reader’s guide. This guide gives all the published articles that the magazine has.

I hope it helps, Regards.