1. Faculty of Natural and Exact Science, Save University (UniSave), Chongoene, Mozambique
2. Department of Physics, Faculty of Science, Eduardo Mondlane University (UEM), Maputo, Mozambique
3. Centre for Marine Research and Technology (CePTMar), Eduardo Mondlane University, Quelimane, Mozambique
4. Department of Physics, Faculty of Science, Ibn Tofail University, Kenitra, Morocco