Ada, Alpius, Robert Jao, and Beauty Beauty. 2018. “PERBEDAAN ABNORMAL RETURN DAN VOLUME PERDAGANGAN SAHAM SEBELUM DAN SESUDAH PENGUMUMAN SUSTAINABILITY REPORTING AWARD (SRA) TAHUN 2017”. SIMAK 16 (01), 63-78. https://doi.org/https://doi.org/10.35129/simak.v16i01.12.