| Spenser's Courteous Pastoral: Book Six of The Faerie Queene H Tonkin (No Title), 1972 | 159 | 1972 |
| A qualitative approach to the assessment of international service-learning H Tonkin, D Quiroga Frontiers: The interdisciplinary journal of study abroad 10 (1), 131-150, 2004 | 133 | 2004 |
| Service-learning across cultures: Promise and achievement H Tonkin, SJ Deeley, MD Pusch, D Quiroga, MJ Siegel, J Whiteley (No Title), 2004 | 109 | 2004 |
| The World in the Curriculum: Curricular Strategies for the 21st Century. Education and the World View, II. H Tonkin, J Edwards Change Magazine Press, 271 North Avenue, New Rochelle, NY 10801, 1981 | 104 | 1981 |
| A research agenda for international service learning H Tonkin International service learning, 191-224, 2011 | 95 | 2011 |
| Internationalizing the Community College: Strategies for the Classroom. J Edwards, HR Tonkin New directions for community colleges 70, 17-26, 1990 | 69 | 1990 |
| 21 The search for a global linguistic strategy H Tonkin Languages in a globalising world, 319, 2003 | 68 | 2003 |
| Language and the ingenuity gap in science H Tonkin Critical Inquiry in Language Studies 8 (1), 105-116, 2011 | 54* | 2011 |
| Esperanto, interlinguistics, and planned language H Tonkin University Press of America, 1997 | 54 | 1997 |
| Language in the 21st Century H Tonkin, TG Reagan John Benjamins Publishing, 2003 | 49 | 2003 |
| The Faerie Queene (Routledge Revivals) H Tonkin Routledge, 2014 | 48 | 2014 |
| Dangerous Language: Esperanto under Hitler and Stalin U Lins, H Tonkin Palgrave Macmillan, 2016 | 46 | 2016 |
| The translator as mediator of cultures ME Frank, H Tonkin The Translator as Mediator of Cultures, 1-211, 2010 | 43 | 2010 |
| Language and society H Tonkin Issues in Global Education 178, 1-9, 2003 | 42 | 2003 |
| Spenser's Garden of Adonis and Britomart's Quest H Tonkin PMLA 88 (3), 408-417, 1973 | 36 | 1973 |
| Esperanto studies: An overview H Tonkin, M Fettes Universala Esperanto-Asocio, 1996 | 30 | 1996 |
| Language diversity in the European Union P Juaristi, T Reagan, H Tonkin Arzoz, Xabier, 2008 | 27 | 2008 |
| International service-learning: A research agenda RG Bringle, H Tonkin Service-learning across cultures: Promise and achievement, 365-374, 2004 | 26 | 2004 |
| One hundred years of Esperanto: A survey H Tonkin Language Problems and Language Planning 11 (3), 264-282, 1987 | 26 | 1987 |
| La fenomeno ESPERANTO W Auld (No Title), 1988 | 22 | 1988 |
