Baskoro, A. B., N. Cahyani, and A. G. Putrada. “Analysis of Voice Changes in Anti Forensic Activities Case Study: Voice Changer With Telephone Effect”. International Journal on Information and Communication Technology (IJoICT), Vol. 6, no. 2, Oct. 2020, pp. 64-77, doi:10.21108/ijoict.v6i2.508.