INTERNATIONAL JOURNAL OF BUSINESS AND ADMINISTRATION RESEARCH REVIEW (IJBARR) (www.ijbarr.com) Bangalore-560083, INDIA. Print ISSN: 2348-0653 Online ISSN: 2347-856X CERTIFICATE OF PUBLICATION This is to Certify that Mr./Mrs./Ms./Dr. Shelshiya J Julin, Bhavadharini. K, Gopalakrishnan. S has published research paper in " International Journal of Business and Administration Research Review (IJBARR) peer reviewed and refereed journal, Volume- 12, Issue- 4, October 2025, pp. 66-70." Paper Title:- " AMAZON-COST LEADERSHIP, DIFFERENTIATION VIA LOGISTICS, PRIME MEMBERSHIP. " Chief Editor Managing Editor