Philip A. Pizzo, David G. Poplack, Peter C. Adamson, Susan M. Blaney, editors
Wolters Kluwer, 2015
Buku Teks
Halperin, Edward C.
Wolters Kluwer, 2015
Buku Teks
edited by A.D. Buckingham, A.C. Legon and S.M. Roberts
Blackie Academic and Professional, 1993
Buku Teks
by Hans-Dieter Holtje ... [et al.]
Wiley-VCH, 2003
Buku Teks
Keith Wilson, John Walker, editor
Cambridge University Press, 2015
Buku Teks SO