JCMR Articles 18.2 Ethical challenges in Nigerian mass media practice: A systematic review from 2020 to 2025 September 30, 2026 ALERO MARTHER RICHARDS, CHARLES CHINEDU ONWUNALI, PH.D., OLORUNTOLA ABRAHAM SUNDAY, PH.D. Abstract Journalism, as a public trust, is guided by codes of conduct established by the International Federation of Journalists...