1. ELEN 6350 Lecture Notes

2. http://www.irf.com/product-info/audio/classdtutorial.pdf

3. https://www.maximintegrated.com/en/app-notes/index.mvp/id/3977

4. https://www.maximintegrated.com/en/app-notes/index.mvp/id/3977

5. http://www.irf.com/product-info/audio/classdtutorial2.pdf