Lambert, Sylvie
The ring : design past and present
Roto Vision, 1998
 Buku Referensi
Cabin and vacation houses/by editors of Sunset books
Lane Books, , 1967
 Buku Teks
Ring theory: proceedings
edited by Robert Gordon
Academic Press, 1972
 Buku Teks
Purnomo Sidi Priambodo
Optimizing coupling region as sensing area in optical ring resonator sensor applications
Faculty of Engineering, Universitas Indonesia, 2015
 Artikel Jurnal
Andi Suriadi
Konflik pengadaan tanah dalam pembangunan infrastruktur perkotaan : studi kasus Jakarta outer ring road
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2011
 UI - Disertasi Open