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・Center for Research Libraries (CRL) Catalog - CRL holds newspapers, journals, dissertations, archives, government publications, and other materials. Its holdings also include over 8000,000 doctoral dissertations. [Full-text and Index]
・Dissertations & Theses Global- It represents dissertations and theses from over 1,000 graduate schools and universities. Full text is available from 1997 to the present. It also contains a significant amount of new international dissertations and theses both in citations and in full text.[Full-text and Index]