sudo nano /etc/apt/sources.list
paste kan disana trus simpan
ketik sudo apt-get update
tunggu sampai selesai oke dech
deb http://kartolo.sby.datautama.net.id/linuxmint tara main upstream import backport
deb http://kambing.ui.ac.id/ubuntu bionic main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu bionic-updates main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu bionic-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://archive.canonical.com/ubuntu/ bionic partner