"Evolution of multisubunit RNA polymerases in the three domains of life". Nature Reviews. Microbiology9 (2): 85–98. February 2011. doi:10.1038/nrmicro2507. பப்மெட்:21233849. See also Cramer 2002: "Multisubunit RNA polymerases". Current Opinion in Structural Biology12 (1): 89–97. February 2002. doi:10.1016/s0959-440x(02)00294-4. பப்மெட்:11839495.
"Evolution of multisubunit RNA polymerases in the three domains of life". Nature Reviews. Microbiology9 (2): 85–98. February 2011. doi:10.1038/nrmicro2507. பப்மெட்:21233849. See also Cramer 2002: "Multisubunit RNA polymerases". Current Opinion in Structural Biology12 (1): 89–97. February 2002. doi:10.1016/s0959-440x(02)00294-4. பப்மெட்:11839495.