Sitomorang, Sitor, 1924-. Zaman baru sadjak-sadjak / [microform] : Sitor Sitomorang. - [Djakarta ] : Madjalah Zaman, [n.d.] - 1 microfiche : positive ; 11 X 15 cm. Bahan IDC (Inter Documentation Company). Modern Indonesia Project : Monographs.