Hoàn thành một primary research đòi hỏi chi phí khá cao, cao hơn so với nghiên cứu thứ cấp. Đồng thời, nó cũng tốn nhiều thời gian hơn so với nghiên cứu thứ cấp. Trong khi nó không
Complete a primary research requires fairly high cost, is higher than the secondary research. At the same time, it also spend much more time than with secondary studies. While it is not
Complete a primary research requires high costs, higher than secondary research. At the same time, it is also time consuming than secondary research. While it does not