Sources of ____ are ____ for knowledge, ____ and access to information The ____ of the information sources is to facilitate the ____ and ____ of documents ____ sources are those that give us ____ or original ____, which has not been ____ collected ____ sources ____ the tracing and ____ of documents.

Primary and secondary sources

طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟