"Sejarah Bontang". Website Resmi Pemerintah Kota Bontang. Archived from the original on 11 October 2018. Retrieved 12 October 2018.
Bontang, Kota. "Sejarah Keadministrasian". Website Resmi Pemerintah Kota Bontang (in Indonesian). Archived from the original on 12 October 2018. Retrieved 12 October 2018.
"Sejarah Bontang". Website Resmi Pemerintah Kota Bontang. Archived from the original on 11 October 2018. Retrieved 12 October 2018.
Bontang, Kota. "Sejarah Keadministrasian". Website Resmi Pemerintah Kota Bontang (in Indonesian). Archived from the original on 12 October 2018. Retrieved 12 October 2018.