Pro Oracle spatial - the essential guide to developing spatially enabled business applications. - Ravi Kothuri; Albert Godfrind; Euro Beinat (Apress, 2004)

Validation of Three-Dimensional Geometries. - Paul Colley; Baris M. Kazar; Ravi Kothuri; Peter van Oosterom; Siva Ravada (Encyclopedia of GIS, 2017)