(3ebOeI aj GdGbJUGO GdbjGSj (B=s Introduction to ecenometrics - (3YhV, WGdH eMeOs ((3YeGf, GdCQOf (B:s (3GdLGeYI GdCQOfjI, YeGOI GdHMK GdYdej,s, 2000)
Keywords: (3GdGbJUGO GdbjGSjs; (3GdSjGSI GdGbJUGOjIs