Rosenthal, M. Sara
Women & depression : a sane approach to mood disorders
Lowell House, 2000
 Buku Teks SO
Neurobiology of mood disorders / Edited by Robert M. Post, James C. Ballenger
Williams & Wilkins, 1983
 Buku Teks SO
The World's major languages
edited by Bernard Comrie
Routledge, 1991
 Buku Referensi
Allen, Roy
Major airports of the world
Ian Allan, 1977
 Buku Referensi
The World's major languages
edited by Bernard Comrie
Oxford University Press, 1987
 Buku Teks SO