hassan, a., fouad, a., & el gindim salah. (1965). on the matrix method for solving linear- differential eqs. National Planning Institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিhassan, ahmed, afaf fouad, এবং el gindim salah. On the Matrix Method for Solving Linear- Differential Eqs. cairo: National Planning Institute, 1965.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিhassan, ahmed, et al. On the Matrix Method for Solving Linear- Differential Eqs. National Planning Institute, 1965.