Links

Fig. 1 Image

Fig. 2 Image

Fig. 3 Image

Fig. 4 Image

Ex. 1 Image / RealAudio

Ex. 2  RealAudio

Ex. 3  Image /RealAudio

Ex. 4 Image

Ex. 5  RealAudio

Ex. 6a  Image

Ex. 6b  Image /RealAudio

Ex. 7a  Image

Ex. 7b Image / RealAudio