. (1971). -. (e26143). University College of Engineering, 21(0), e26143
. "-" .e26143 , University College of Engineering, 21, 0, 1971, e26143.
. (1971). '-', University College of Engineering, 21(0), e26143.
, "-," University College of Engineering, 21 0 (1971): e26143,
. -. University College of Engineering. 1971;21(0):e26143 (In Persian).
