hassan, a., fouad, a., & el gindim salah. (1965). on the matrix method for solving linear- differential eqs. National Planning Institute.
Chicago (17e ed.) Bronvermeldinghassan, ahmed, afaf fouad, en el gindim salah. On the Matrix Method for Solving Linear- Differential Eqs. cairo: National Planning Institute, 1965.
MLA (9e ed.) Bronvermeldinghassan, ahmed, et al. On the Matrix Method for Solving Linear- Differential Eqs. National Planning Institute, 1965.