Mahangila, Deogratius Ng’winula, and Kevin Holland. “Analysis of Procedural and Retributive Justice in Tax Compliance”. Operations Research Society of Eastern Africa 5, no. 1 (June 30, 2015): 113-160. Accessed May 18, 2024. https://orseajournal.udsm.ac.tz/index.php/orsea/article/view/36.