Kadenyeka , Joan, and Amos Washika. “Differentiation Strategy and Performance of Selected Supermarkets in Nairobi City County, Kenya”. Journal of Strategic Management 3, no. 4 (December 18, 2023): 24–36. Accessed October 9, 2024. https://edinburgjournals.org/journals/index.php/journal-of-strategic-management/article/view/234.