Kirn, Elaine
Interactions I. a communicative grammar / Elaine Kirn, Darcy Jack
McGraw-Hill, 1990
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Warner, Patricia K.
Interactions II : a communicative grammar
MacGraw-Hill, 1990
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Modern German Grammar workbook
by Bill Dodd ... [and others]
Routledge, 1996
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Simanjuntak, Herpinus
German Grammar and Conversation Handbook
Kesaint Blanc, 2017
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Azar, Betty Schrampfer, 1941-
Basic english grammar
Prentice Hall Regents, 1995
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