. (1971). -. (e26139). University College of Engineering, 21(0), e26139
. "-" .e26139 , University College of Engineering, 21, 0, 1971, e26139.
. (1971). '-', University College of Engineering, 21(0), e26139.
, "-," University College of Engineering, 21 0 (1971): e26139,
. -. University College of Engineering. 1971;21(0):e26139 (In Persian).
