Presenting a systemic model for the effectiveness of marketing communication activities in social networks: with a political economy approach Somayyeh Abash Loui Aghdam; hirash soltanpanah; Omid Mahdieh; Roya Shakeri; Foad Habibi Volume 5, Issue 1, May 2024 10.48308/jep.2024.232303.1145 View Article