APA
National Board of Accountants and Authors, . (2019). Elements of Commercial Knowledge and Taxation TO7. Dar Es Salaam: National Board of Accountants and Auditors.
Chicago
National Board of Accountants and Authors, . 2019. Elements of Commercial Knowledge and Taxation TO7. Dar Es Salaam: National Board of Accountants and Auditors.
Harvard
National Board of Accountants and Authors, . (2019). Elements of Commercial Knowledge and Taxation TO7. Dar Es Salaam: National Board of Accountants and Auditors.
MLA
National Board of Accountants and Authors, . Elements of Commercial Knowledge and Taxation TO7. Dar Es Salaam: National Board of Accountants and Auditors. 2019.