(3MJi jMVQ GdWHjH(B: (3GdehLR aj GdESYGaGJ GdChdjIs - (3dhjS g(B. (3eQcQs; (3eMeO fXja (B((3JQLeI(B)s ((3eUQs (3ecJHI fgVI eUQ s, 1961)
Keywords: Applied Sciences (3GdYdhe GdJWHjbjIs; General