(3GdJQHjI heTcdGJ GdeLJeY (B/ s - (3HOQGf, THd, s ((3GdGScfOQjI (B[(3eUQ(B] : s (3GdecJHI GdJQHhjI, s, 2017)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B236-238.s
Keywords: (3Yde GdGLJeGY GdJQHhjs -- (3eUQ(B.s; (3GdGUdGM GdJYdjejs -- (3eUQ(B.s; (3GdJNWjW GdJQHhjs -- (3eUQ(B.s