Citation analysis is a bibliometric technique used to study the relationships among scholarly publications through their citations and references. It examines how often a particular document, author, journal, institution, or subject is cited by other publications. The basic assumption is that frequently cited works have greater influence or importance within a particular field of knowledge. Citation analysis is widely used in library and information science for evaluating information sources, measuring research impact, identifying influential authors and journals, and understanding the development of disciplines. Citation analysis helps librarians and researchers determine which journals are most useful and influential. It can show patterns such as the number of citations received by an article, the journals in which highly cited papers appear, the relationship between citing and cited documents, and the growth of a subject over time. Major citation databases such as Web of Science, Scopus and Google Scholar provide data that can be used for such analysis. Different ways of ranking journals include: 1.