Hornby, A. S., & A. S. Hornby; edited by Sally Wehmeier; phonetics editor Michael Ashby. Oxford advanced learner's dictionary of current English. Oxford: Oxford University Press.

Hornby, A. S., و A. S. Hornby; edited by Sally Wehmeier; phonetics editor Michael Ashby. Oxford Advanced Learner's Dictionary of Current English. Oxford: Oxford University Press.

Hornby, A. S., و A. S. Hornby; edited by Sally Wehmeier; phonetics editor Michael Ashby. Oxford Advanced Learner's Dictionary of Current English. Oxford: Oxford University Press.