I. Tawfiq, N., A. Hassan, A., A.Mohamad, H. (2005). Some properties of the Osvillatory and nonoscillatory solutions of second order. , 2(3), 517-521.
Njlaa I. Tawfiq; Awatif A. Hassan; Hussain A.Mohamad. "Some properties of the Osvillatory and nonoscillatory solutions of second order". , 2, 3, 2005, 517-521.
I. Tawfiq, N., A. Hassan, A., A.Mohamad, H. (2005). 'Some properties of the Osvillatory and nonoscillatory solutions of second order', , 2(3), pp. 517-521.
I. Tawfiq, N., A. Hassan, A., A.Mohamad, H. Some properties of the Osvillatory and nonoscillatory solutions of second order. , 2005; 2(3): 517-521.