1. Research Methods of Social Investigation is a book published by Renmin University of China Press in 2005. The author is Hao Dahai. This book completely introduces the survey methods, hoping that readers will have a more professional understanding and understanding after reading it. The biggest feature of this book is its integrity and scientific operation.

2. This book is a textbook to improve the research methods of social investigation, including sampling, paper design, data collection methods, data processing and drafting of investigation reports. Honesty is a major feature of this book. The detailed introduction of this book not only enables readers who want to know the survey method to learn this method completely, but also strives to make readers who have a certain understanding of the survey method through the textbook Introduction to Social Research Methods have a more professional understanding and understanding.

This book can also be used as a practical operation manual. Operations research is another feature of this book. This book can help the practitioners of social investigation to complete the specific operation process by explaining the operation procedures and skills of each step of social investigation, supplemented by the actual case handling under the specific environment in China.