. (1971). -. (e26144). University College of Engineering, 21(0), e26144
. "-" .e26144 , University College of Engineering, 21, 0, 1971, e26144.
. (1971). '-', University College of Engineering, 21(0), e26144.
, "-," University College of Engineering, 21 0 (1971): e26144,
. -. University College of Engineering. 1971;21(0):e26144 (In Persian).
