. (1971). -. (e26138). University College of Engineering, 21(0), e26138
. "-" .e26138 , University College of Engineering, 21, 0, 1971, e26138.
. (1971). '-', University College of Engineering, 21(0), e26138.
, "-," University College of Engineering, 21 0 (1971): e26138,
. -. University College of Engineering. 1971;21(0):e26138 (In Persian).
