UWIMANA Jean Luc 1. https://doi.org/10.51867/ajernet.5.3.102; 2. https://oapub.org/soc/index.php/EJSSS/article/view/2185/2746; 3. https://oapub.org/lit/index.php/EJLLL/article/view/693/721; 4. https://journal.kp.ac.rw/index.php/kp;
Dr. Felix Dusabirane 1. https://journals.aps.org/prb/pdf/10.1103/7vr4-57mk 2. https://books.google.rw/books/about/Ultrafast_Dynamics_of_Electrons_and_... 3. https://repository.maseno.ac.ke/bitstream/handle/123456789/492/AS3122543...
HAHIRWUWIZERA Crispine 1. https://www.researchgate.net/publication/ 2. https://ijpsat.org/index.php/ijpsat/art. 3. https://journals.jozacpublishers.com/index.php/jil/article/view/1139
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