Pelgrum, Willem J., 1950- (Nombre personal)

His Educational assessment, c1989: t.p. (Willem J. Pelgrum) p. 119 (b. 10-23-50)

New information technologies in the education systems ... 1994: t.p. (W.J. Pelgrum)

VIAF, sitio web, 16 octubre 2020: (puntos de acceso: Pelgrum, Willem J., 1950-) https://viaf.org/viaf/265051189/#Pelgrum,_Willem_J.,_1950-

Pedagogy and ICT use in schools around the world : findings from the IEA SITES 2006 study, 2008: portada (Willem J. Pelgrum, editor)