Drake, Pat. Practitioner research at doctoral level : Developing coherent research methodologies / Pat Drake with Linda Heath. - London ; New York : Routledge, 2011. - viii, 131 p. ; 24 cm. ISBN: 9780415490214 (hardback) 0415490219 (hardback) 9780415490221 (pbk.) 0415490227 (pbk.) 9780203841006 (ebook) 020384100X (ebook) Subjects--Topical Terms: Doctoral students.Dissertations, Academic--Research--Methodology.