SELAMAN, ALRASHEED, et al. “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, vol. 6, no. 2, Feb. 2026, https://doi.org/10.56989/benkj.v6i2.1751.