Author Description

<p>This book is written using several reviews and a more readily understood way. This book is designated by writers especially for students and graduate students in diploma and undergraduate programs at university and high school level. This book is very easy to understand and analyze by novice students, as well as students who will start the study and who will continue the study research simply. It should be underlined that, the contents of this book is a simple analysis that is used by the author in various short studies. The authors hopes, if readers who read this book later, can make a simple example of or by using a slightly different technique than the author did in this book.<br></p>