The content of this book is mainly research work, personally discovered for the first time in the whole history of the world, and is completely new. The use of

The object of this book is to impart the most current knowledge of UMAR in treating puberphonia. Umar is a pathway of creating new idea in treating puberphonia

Since this book was first published, four years ago, there has been a considerable upsurge of interest in the field of both normal and abnormal voice production

There has been a tremendous growth of interest in the human voice and its disorders during the past decade. This has led to the development of a variety of 'voi

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