ERIC is a good place to start if you want to find information on Academic Integrity (AI) and the work done within higher education to prevent students and staff from plagiarizing. The prevention is both a pedagogical issue and a punitive one, see for instance the article by Griffith, below.
Gunnarsson et al have published an article (not yet in ERIC) which describes how an anti-plagiarism component has been integrated in a Research methodology course. The article can be found in a journal which you in Rwanda have access to through the Research4Life** program.
*ERIC contains over 1,3 million records - but remember that not all of them are accessible in full text.
** Research4Life provides developing countries with free or low cost access to academic and professional peer-reviewed content. online. Research4Life is the collective name for the programs HINARI, AGORA, OARE and ARDI.