deb http://kambing.ui.ac.id/ubuntu/ focal main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ focal-updates main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ focal-security main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ focal-backports main restricted universe multiverse
deb http://kambing.ui.ac.id/ubuntu/ focal-proposed main restricted universe multiverse