Palaniappan, K. Geospatial Informatics XI. SPIE Digital Library.
Chicago-čujuhus (17. p.)Palaniappan, Kannappan. Geospatial Informatics XI. SPIE Digital Library.
MLA-čujuhus (9. p.)Palaniappan, Kannappan. Geospatial Informatics XI. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.