1. Adomian. G. (1983).Stochastic Systems. (Academic Pres).
2. Axelsson, O. (1994),Iterative Solution Methods, (Cambridge University Press).
3. Bharrucha-Reid, A.T. (1959), “On random operator equations in Banach space”,Bull. Acad. Polon. Sci., Ser. Sci. Math. Astr. Phys.,7, 561–564.
4. Bharrucha-Reid, A.T. ed. (1968), Probabilistic Methods in Applied Mathematics, (Academic Press).
5. Cameron, R.H. and Martin, W.T. (1947). “The orthogonal development of nonlinear functionals in series of Fourier-Hermite functionals”,Ann. Math.,48, 385–392.