Part 1 the author will research on the related and the case studies related to the subject, part 2 will be about the principal research methods, the information was collected and the use in the article in order to learn about the activities of those who sold fruit in the sidewalk , part 4 is about the analysis of the information collected and the results conclude are as well as the statistical synthesis and the final part will be the conclusion section and give some general solutions.
đang được dịch, vui lòng đợi..