Suleman, Mariama. “Trend in Revenue Performance before and After Integration of Ghana Revenue Authority (GRA): The Case of Wa Municipality, Ghana”. The International Journal of Humanities & Social Studies 8, no. 11 (November 30, 2020). Accessed May 19, 2024. http://www.internationaljournalcorner.com/index.php/theijhss/article/view/156726.