Later there came the publication of this research, a wide range of issues, especially the business of David Bell (Alexander mail lawin Bell) has produced significant research, including the invention of the phonetic system.
After the latter has published extensive research on this subject. In particular, the father of Bell (Alexander Melville Bell) has produced research important. The invention voting system
Later later has published research on this a variety of, especially, the father of Bell (Alexander Melville. Bell) has produced important research include The invention of the pronunciation system