. (1971). -. (e26141). University College of Engineering, 21(0), e26141
. "-" .e26141 , University College of Engineering, 21, 0, 1971, e26141.
. (1971). '-', University College of Engineering, 21(0), e26141.
, "-," University College of Engineering, 21 0 (1971): e26141,
. -. University College of Engineering. 1971;21(0):e26141 (In Persian).
