B. Bollob'{a}s and P. ErdH{o}s (1998). Graphs of extremal weights. Ars Combin.. 50, 225-233
J. A. Bondy and U. S. R. Murty (2008). Graph Theory. Springer New York. 244
c{S}. B. Bozkurt, A. D. G"{u}ng"{o}r and I. Gutman (2010). Randi'{c} spectral radius and Randi'{c} energy. MATCH Commun. Math. Comput. Chem.. 64, 321-334
S. B. Bozkurt, A. D. Gongor, I. Gutman and A. S. Cevik (2010). Randi'c Matrix and Randi'c Energy. MATCH Commun. Math. Comput. Chem.. 64, 239-250
D. Cvetkovic, M. Doob and H. Sachs (1980). Spectra of Graphs--Theory and Application. Academic Press, New York. 87
M. Cavers, S. Fallat and S. Kirkland (2010). On the normalized Laplacian energy and general Randi'{c} index $R_{-1}$ of graphs. Linear Algebra Appl.. 433, 172-190
B. Furtula and I. Gutman (2013). Comparing energy and Randi'c energy. Macedonian Journal of Chemistry and Chemical Engineering. 32 (1), 117-123
F. R. Gantmacher (1959). The Theory of Matrices. Chelsea, New York.
I. Gutman, B. Furtula and c{S}. B. Bozkurt (2014). On Randi' c energy. Linear Algebra Appl.. 442, 50-57
C. Godsil and G. Royle (2001). Algebraic Graph Theory. Springer, New York.
M. Randi'{c} (1975). On characterization of molecular branching. J. Amer. Chem. Soc.. 97, 6609-6615
L. Shi (2009). Bounds on Randi'{c} indices. Discrete Math.. 309 (16), 5238-5241