Dissertations 30 Dissertations, Academic 30 English language 23 Study and teaching 14 Foreign speakers 11 History 10 Politics and government 10 Social aspects 9 Management 7 Study and teaching (Higher) 7 College students 5 Economic aspects 5 History and criticism 5 Language 5 Organizational effectiveness 5 Tourism 5 Universities and colleges 5 Architecture, Domestic 4 Art 4 Environmental aspects 4 Foreign relations 4 Islam and politics 4 Learning strategies 4 Persian speakers 4 Research 4 Second language acquisition 4 Social conditions 4 Speech acts (Linguistics) 4 Technological innovations 4 Themes, motives 4