. (1971). -. (e26146). University College of Engineering, 21(0), e26146
. "-" .e26146 , University College of Engineering, 21, 0, 1971, e26146.
. (1971). '-', University College of Engineering, 21(0), e26146.
, "-," University College of Engineering, 21 0 (1971): e26146,
. -. University College of Engineering. 1971;21(0):e26146 (In Persian).
