“RESOURCE LEVERAGING AND CUSTOMER RETENTION IN UPSCALE RESTAURANTS IN PORT HARCOURT, RIVERS STATE, NIGERIA”, JournalNX, vol. 2, no. 08, pp. 36–48, Aug. 2016, Accessed: Jan. 30, 2026. [Online]. Available: https://repo.journalnx.com/index.php/nx/article/view/4054