Daulay, R., and S. A. Qurani. “EGO DEFENSE MECHANISM OF SUMARNI AS REFLECTED IN OKKY MADASARI’S THE YEARS OF THE VOICELESS: A PSYCHOANALYSIS APPROACH”. IdeBahasa, Vol. 4, no. 2, Dec. 2022, pp. 157-64, doi:10.37296/idebahasa.v4i2.98.