Trace data processing from the Internet and trace from the reference books from the theory and concepts from many places, based on the purpose of the research, with details as follows:
The use of information from the Internet and searched by reference to the theory. And the concept of multiple The consideration for the purposes of research. The details are as follows:
Use the process of information retrieval from Internet sources and information retrieval from the reference from the theories and concepts of many, considered according to the purpose of the research. The details are as follows.