Gray, Sylvester. “THE IMPORTANCE OF ENVIRONMENTAL SCANNING FOR SUCCESSFUL MARKETING: AN ANALYSIS OF INTERNAL AND EXTERNAL FACTORS”. International Journal of Interdisciplinary Research in Marketing and Management (IJIRMM) 9, no. 3 (August 3, 2023): 49–55. Accessed May 2, 2025. https://sadijournals.org/index.php/IJIRMM/article/view/92.