Division of Behavioral and Social Sciences and Education; Board on Science Education; Center for Science, Mathematics, and Engin National Academies Press 1998 Pehmeäkantinen kirja
National Research Council; Center for Science, Mathematics, and Engineering Education; Committee on Development of an Addendum t National Academies Press 2000 Pehmeäkantinen kirja
Center for Science, Mathematics & Engineering Education; Board on Science Education; Division of Behavioral and Social Sciences National Academies Press 1997 Pehmeäkantinen kirja