Jabbar Abood, H., Sabah Ahmed, A. (2007). Differential Equation For Higher Frequency Periodic Direction Function. , 3(3), 113-119.
Hayder Jabbar Abood; Ahmed Sabah Ahmed. "Differential Equation For Higher Frequency Periodic Direction Function". , 3, 3, 2007, 113-119.
Jabbar Abood, H., Sabah Ahmed, A. (2007). 'Differential Equation For Higher Frequency Periodic Direction Function', , 3(3), pp. 113-119.
Jabbar Abood, H., Sabah Ahmed, A. Differential Equation For Higher Frequency Periodic Direction Function. , 2007; 3(3): 113-119.