One of my main reference books in researching the influence of polygamy scholars on the society of legal studies and sociology is the introductory book of methodology Elly M Setiadi and Usman Kolip, this book is excellent as a reference for sociology research, the content of this book is largely the theory of sociological application and social phenomena of society as agents of change in society. This book is very thick, I bought this sociology book in Medan bazaar UINSU Medan, I buy because I need, I read, because I want to know the contents, I am a photo because I am sure there are among friends who need, I uploaded in steemit, because here many of the sociologists who read, umpteen and thank you, may be useful.
