Too much computer and Internet use is bad for your grades, especially if you are young and poor: Results from the 2001 Brazilian SAEB.
Jacques WainerTom DwyerRodrigo Silveira DutraAndre CovicValdo B. MagalhãesLuiz Renato Ribeiro FerreiraValdiney Alves PimentaKleucio ClaudioPublished in: Comput. Educ. (2008)