Le, Thai Phong, and Hong Ngoc Han Le. “ Product Development: In-House Innovation or International Clone? A Research on Different Performance of Technology Start-Ups in Vietnam”. Journal of International Economics and Management, no. 72 (April 30, 2015): 94-106. Accessed April 26, 2024. https://jiem.ftu.edu.vn/index.php/jiem/article/view/129.