Pitoyo, Happy. (1995). Kamus Jerman - Indonesia /Happy Pitoyo. Jakarta :: Halirang,.
Pitoyo, Happy. Kamus Jerman - Indonesia /Happy Pitoyo. Jakarta :: Halirang,, 1995
Pitoyo, Happy. Kamus Jerman - Indonesia /Happy Pitoyo. Jakarta :: Halirang,, 1995.