IDRP Ltd Co tracks citation metrics for its journals using data obtained through Google Scholar. These metrics are intended to provide authors and readers with an estimate of how frequently articles published in a journal have been cited.

Our Citation Metrics

The primary metric reported on our journal pages is total citations for that particular journal across all articles indexed by Google Scholar. Google Scholar metrics correlate strongly with other established academic impact factor measures with the added benefit of including of a wide array of academically-relevant sources.

Citation statistics reflect data available at the time of collection. Because citation databases are continuously updated, citation counts may change over time. Unless otherwise noted, citation statistics currently displayed on journal pages reflect our most recent evaluation of data collected through June 2026. 

Journal Impact Factors

The best-known citation metric is the Journal Impact Factor (JIF), a proprietary indicator calculated by Clarivate and reported in the Journal Citation Reports (JCR) using citation data from journals indexed in the Web of Science Core Collection. 

The journals published by IDRP Ltd Co and its predecessor organizations are not included in Journal Citation Reports® and therefore do not possess an official Web of Science Journal Impact Factor®. For impact estimates we refer to the aforementioned Google Scholar sources. Alternative, more inclusive proprietary impact metrics also exist, such as SJIFactor.

Note on Interpreting Citation Metrics

Citation metrics should be interpreted as descriptive indicators of scholarly usage rather than direct measures of journal or article quality. All metrics, including impact factors and citation counts, have limitations which should be considered. For example, see the San Francisco Declaration on Research Assessment. Citation counts are influenced by journal popularity, inclusion of journals in proprietary databases, discipline, amount of published material in a journal, article type, and the amount of time available for articles to accumulate citations.

Consequently, comparisons between journals of substantially different ages or subject areas should be made with caution. Newer journals and recently published articles generally have had less opportunity to accumulate citations than older publications.