Ghosh, AshimSengupta, Dhurjati Prasad2013-10-012013-10-011988Indian Journal of Earth Sciences, v 15, no 2, p 154-159http://hdl.handle.net/10263/5629enUse of venn diagramStratigraphic studyVenn diagram in quantitativeUse of venn diagram in quantitative stratigraphic studyArticle