Mustapha, Mohd Zulkhairi, Eric H. Y. Koh, Sok-Gee Chan, and Zulkufly Ramly. 2017. “The Role of Corruption Control in Moderating the Relationship Between Value Added Tax and Income Inequality”. International Journal of Economics and Financial Issues 7 (4):459-67. https://econjournals.com/index.php/ijefi/article/view/5124.