Horizon Research Publishing.

Elsevier B.V..

Creative Publishing House.

Elsevier Ltd.

SAGE Publications Ltd.

Elsevier Inc..

Springer Science and Business Media Deutschland GmbH.

American Chemical Society.

Shahid Rajaee Teacher Tarining University (SRTTU).

Elsevier B.V..

Elsevier Ltd.

Public Library of Science.

Elsevier Inc..

Unique Scientific Publishers.

Elsevier B.V..