📍 NDLTD: Global ETD Search :

http://search.ndltd.org/search.php?q=subject%3Administracion%2Bde

📍 Thailand Digital Collection (ThaiLIS) :

https://tdc.thailis.or.th/tdc/basic.php

📍 EThOS e-theses Online Service :

https://libguides.ials.sas.ac.uk/az/ethos-electronic-theses-online-system

📍 Dart-Europe

https://www.dart-europe.org/basic-search.php

📍 Theses Canada

https://library-archives.canada.ca/eng/services/services-libraries/theses/Pages/search-theses-canada.aspx

📍 OhioLINK: Electronic Theses & Dissertations Center

https://etd.ohiolink.edu/acprod/odb_etd/r/etd/search/1?clear=0,1,5,10,20,21,1001

📍 Digitala Vetenskapliga Arkivet (DiVA Portal) :

https://www.diva-portal.org/smash/search.jsf?language=sv&dswid=1576

📍 PQDT Open :

https://www.proquest.com/

📍 Dissertations.se

https://www.dissertations.se/