Anggrawan, Anthony, et al. “Developing Application in Anticipating DDoS Attacks on Server Computer Machines”. MATRIK : Jurnal Manajemen, Teknik Informatika Dan Rekayasa Komputer, vol. 20, no. 2, May 2021, pp. 427-34, https://doi.org/10.30812/matrik.v20i2.410.