Improving the numerical evaluation of certain oscillatory integrals. - George E. Okecha (Computing, 1989)

On The numerical evaluation of singular integrals with coth-kernel. - George E. Okecha (Int. J. Comput. Math., 1998)

On the numerical solution of strongly singular fredholm integral equations of the second kind. - George E. Okecha (Int. J. Comput. Math., 1999)

Convergence of Solutions of Certain Fourth-Order Nonlinear Differential Equations. - Babatunde Sunday Ogundare; George E. Okecha (Int. J. Math. Math. Sci., 2007)

Solution of Cauchy-Type Singular Integral Equations of the First Kind with Zeros of Jacobi Polynomials as Interpolation Nodes. - George E. Okecha (Int. J. Math. Math. Sci., 2007)