SELAMAN, ALRASHEED; AHMED , HOZAIFA; AWDLKARIM , ABALRRAHIM. Effectiveness of Public Relations Communication Activities in Sudanese Economic Institutions: The Case of the Public Relations Department at Zadna Company (2020–2021). Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 6, n. 2, 2026. DOI: 10.56989/benkj.v6i2.1751. Disponível em: https://www.benkjournal.com/index.php/benkj/article/view/1751. Acesso em: 30 apr. 2026.