Benbrahem, D. and FarhiM.‎. 2020. The role of marketing communication skills in developing and enhancing ‎loyalty. Case study - Orascom Telecom Algeria (OTA) "Djezzy‏"‏. Dirassat Journal Economic Issue. 6, 2 (Apr. 2020), 33-55. DOI:https://doi.org/10.34118/djei.v6i2.386.