EBSCO Open Dissertations now includes the content from American Doctoral Dissertations. It is a free database with records for more than 1.4 million electronic theses and dissertations from more than 320 universities around the world. 

Full Text database of independent studies, theses and dissertations from Mae Fah Luang University.

Thailand Digital Collection, a database of  independent studies, theses, dissertations and research reports compiled from various Thai universities by the Thai Library Integrated System (ThaiLIS) project