Long, P. D. and Anh, H. T. M. (2017) “Innovation and Productivity of Vietnamese Small and Medium Enterprises: Firm level panel data evidence”, International Journal of Economics and Financial Issues, 7(3), pp. 226–232. Available at: https://econjournals.com/index.php/ijefi/article/view/4467 (Accessed: 1 May 2024).