Gothwal, Raj Kumar, Vinod Kumar Nigam, M. Krishna Mohan, Dinakar Sasmal, and Purnendu Ghosh. 2007. “Extraction of Bulk DNA from Thar Desert Soils for Optimization of PCR-DGGE Based Microbial Community Analysis”. Electronic Journal of Biotechnology 10 (3). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v10n3-6.