1. Laboratory and Department of Metallurgy and Materials Engineering, Badji Mokhtar University, Annaba, Algeria
2. Department of Pharmaceutical, Chemical & Environmental Sciences, Faculty of Engineering and Science, University of Greenwich (Medway Campus), Chatham Maritime, Kent, London, United Kingdom
3. Department of Science and Engineering of Materials, Higher National School of Mines and Metallurgy, Annaba, Algeria
4. Department of Structural and magnetic researches, Institute of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Czestochowa, Poland