Word from the director on the occasion of the Algerian liberation revolution (1st of November 1954).
![](http://www.hns-re2sd.dz/wp-content/uploads/2021/05/flag.jpg)
Word from the director on the occasion of the Algerian liberation revolution (1st of November 1954).
Higher National School of Renewable Energies, Environment & Sustainable Development
Constantine road, Fesdis, Batna 05078, Algeria.
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