. (1981). -. (e26862). University College of Engineering, 42(0), e26862
. "-" .e26862 , University College of Engineering, 42, 0, 1981, e26862.
. (1981). '-', University College of Engineering, 42(0), e26862.
, "-," University College of Engineering, 42 0 (1981): e26862,
. -. University College of Engineering. 1981;42(0):e26862 (In Persian).
