. (1971). -. (e26137). University College of Engineering, 21(0), e26137
. "-" .e26137 , University College of Engineering, 21, 0, 1971, e26137.
. (1971). '-', University College of Engineering, 21(0), e26137.
, "-," University College of Engineering, 21 0 (1971): e26137,
. -. University College of Engineering. 1971;21(0):e26137 (In Persian).
