1. Abramowitz M, Stegun I A, 1965. Handbook of mathematical functions (8th ed.). Dover Publications.
2. Carslaw H S, 1959. Conduction of heat in solids (2nd ed.). Oxford Press.
3. Chirone R, Massimilla L, 1988. Primary fragmentation of coal in fluidized bed combustion. In: 22nd Symposium (International) on Combustion, the Combustion Institute, 267–277.
4. Dacombe P, Pourkashanian M, Williams A, Yap L, 1999. Combustion-induced fragmentation behavior of isolated coal particles. Fuel, 78: 1847–1857.
5. Dean G Duffy, 2004. Transform methods for solving partial differential equation (2nd ed.). Chapman and Hall.