Hutagalung, R. 2018. Implementasi Algoritma Prediction By Partial Matching (Ppm) Pada Kompresi File Teks Terenkripsi Elgamal. JURNAL RISET KOMPUTER (JURIKOM). 5, 6 (Dec. 2018), 611–620. DOI:https://doi.org/10.30865/jurikom.v5i6.1196.