Gisella, Luh Putu Gina, and Dony Abdul Chalid. “Abnormal Return and the Charactersitics of Merger and Acquisition in Indonesia”. Journal of Economics, Business, and Accountancy Ventura, vol. 20, no. 1, Aug. 2017, pp. 31-39, https://doi.org/10.14414/jebav.v20i1.538.