1. M. S. Miller and B. Ross, An introduction to the fractional integrals and derivatives-theory and application, Wiley, New York, 1993.
2. I. Podlubny, Fractional differential equations, Academic, New York, 1999.
3. R. Herrmann, Fractional calculus: An introduction for physicists, World Scientific Publishing Company, Singapore, 2011.
4. R. Hilfer, Applications of fractional calculus in physics, World Scientific Publishing, River Edge, NJ, USA, 2000.
5. X. J. Yang, H. M. Srivastava and C. Cattani, Local fractional homotopy perturbation method for solving fractal partial differential equation, Rom. Rep. Phys. 67 (2015), 752–761.