(3JNWjW hVHW GdGfJGL (B:s (3JWHjbGJ SJI SjLeG (Bsix sigma / s - (3Jhajb eMeO YHOGdeMSf s ((3GdbGgQI (B: s (3OGQ GdacQ GdYQHi,s, 2020)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI s
Keywords: (3GOGQI GdGfJGL s; (3VHW GdLhOI s; (3LhOI GdGfJGL s; (3VHW GdGfJGL s; (3SJI SjLeGs