Kỹ nguyên mới đang mở ra

http://blog.synova-solutions.com/e-commere-vs-m-commerce/. 

Market research

http://tailieu.tv/tai-lieu/bai-giang-nghien-cuu-thi-truong-truc-tuyen-20309/

http://maxreading.com/sach-hay/cac-ky-nang-tiep-thi-hieu-qua/cac-phuong-phap-nghien-cuu-khong-chinh-thuc-tiep-can-khach-hang-13472.html