Collins German college dictionary
Harper Collins Publisher, 1995
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The Oxford paperback German dictionary & Grammer
Oxford : Oxford University Press, 1995,
Buku Referensi
The Oxford-duden German dictionary
Clarendon Press, 1990
Buku Referensi
The Oxford-duden German dictionary
Clarendon Press, 1990
Buku Referensi
The Oxford-duden German dictionary
Clarendon Press, 1990
Buku Referensi