Safira, Tania, and Febryanti Simon. “Uji Komparasi Abnormal Return, Trading Volume, Trading Frequency, Dan Bid-Ask Spread Sebelum Dan Sesudah Share Split”. Ultimaccounting Jurnal Ilmu Akuntansi 8, no. 2 (December 2, 2016): 24-45. Accessed May 5, 2024. https://ejournals.umn.ac.id/index.php/Akun/article/view/580.