70.03 methods, techniques and organization of social science research 1 Public Opinion 1 Public opinion polls 1 Questionnaires Recherche 1 Research 1 Sciences sociales 1 יותר ... Social Sciences 1 Social sciences 1 Sondages d'opinion 1 Surveys and Questionnaires 1 Vragenlijsten 1 public opinion polls 1 questionnaires social sciences 1 פחות ...