Coba jelasin Lihat juga dari Bahasa Skots Awal dong

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Aitken, A.J. (2002) Macafee C. (Ed) The Older Scots Vowels: A History of the Stressed Vowels of Older Scots From the Beginnings to the Eighteenth century. Edinburgh, The Scottish Text Society.

Jones, Charles (1997) The Edinburgh History of the Scots Language. Edinburgh, University of Edinburgh Press.

Slater, J. (1952) 'An edition of Early Scots texts from the beginnings to 1410', Dissertation, 2 Vols, University of Edinburgh.