1. Cyclic characteristics of coal bearing sediment in the Bochumer Formation (Westphal A-2) Ruhrgebiet, Germany;Casshyap;Sedimentology,1975
2. Fluvial models of the Lower Permian gondwana coal measures of Son-Mahanadi and Koel-Damodar basins, India;Casshyap,1984
3. Analysis of cyclical sedimentation in the lower Permian Mchuchuma coalfield, SW Tanzania;Casshyap;Geologische Rundschau,1987
4. Inter-relationships of stratigraphic and lithologic variables in Permian fluviatile Gondwana coal measures of eastern India;Casshyap,1988
5. Statistics and Data Analysis in Geology;Davis,2002