Yunus, Norhanishah Mohamad, and Rusmawati Said. “Do Higher Levels of Qualification Lead to Higher Returns to Education: Evidence from Malaysian Education Sector”. International Journal of Economics and Financial Issues 6, no. 6S (October 4, 2016): 20–26. Accessed April 23, 2024. https://econjournals.com/index.php/ijefi/article/view/3104.