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About DDU Journal		Address
The aim of the HARLA journal is to advance in research and publications of both fundamental and applied researches. HARLA journals publish high-quality research work results that have been rigorously peer reviewed by experts. It is an Open Access, peer-reviewed journal published by Harla Journals Online, Dire Dawa University, Dire Dawa, Ethiopia. All credits and honors to PKP* for their OJS.*		Tel: +251-251-111501 Fax: +251-251-127971 P.O.Box: 1362 Email:[email protected] [email protected] Location: Dire Dawa, Ethiopia

About DDU Journal

Address

The aim of the HARLA journal is to advance in research and publications of both fundamental and applied researches. HARLA journals publish high-quality research work results that have been rigorously peer reviewed by experts.

It is an Open Access, peer-reviewed journal published by Harla Journals Online, Dire Dawa University, Dire Dawa, Ethiopia. All credits and honors to PKP for their OJS.

Tel: +251-251-111501

Fax: +251-251-127971
P.O.Box: 1362
Email:[email protected]

[email protected]
Location: Dire Dawa, Ethiopia

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