1. Abramowitz M., Stegun I.A., Handbook of mathematical functions: with formulas, graphs, and mathematical tables, Dover Books on Mathematics, 1964.
2. Bonar D.D and Kourym.M.J., Real infinite series, MAA, Washington DC, 2006.
3. Davis, H.T. 2015., The summation of series (Dover Books on Mathematics), Mineola, New York: Dover Publications. ISBN-13: 63 978-0486789682.
4. Edwards M.H., Riemann's zeta function, Dover Publications; Dover Ed edition, June 13, 2001.
5. Fabiano, N. Zeta function and some of its properties, Vojnotehni ˇcki glasnik/Military Technical Courier, 68(4), 895-906 (2020).