Suharjito, Suharjito. “Improving Data Technology Warehouse Performance Using Filesystem With GZIP, LZJB and ZLE Compression”. Jurnal Informatika Dan Sistem Informasi (JUISI), vol. 2, no. 2, Feb. 2017, pp. 41-51, https://journal.uc.ac.id/index.php/JUISI/article/view/241.