F.References

1.<Hydropneumatic suspension>,Wikipedia,free encylopedia,May 2009,in Hydractive Suspension,

<https:///Hydropneumatic%20suspension%20%20Wikipedia,%20the%20free%20encyclopedia.htm>

2.<PSA Peugeot citreon>,Wikipedia,free encylopedia,in PSA Peugeot citreon,

<https:/// PSA%20Peugeot%20Citroën%20-%20Wikipedia,%20the%20free%20encyclopedia.htm>

3.Chris longhurst,The suspension bible,1994-2012,in Hydropneumatic suspension,

< http://www.carbibles.com/>

4.< 2008 Lakshmi Anand K, Director of MSPVL Polytechnic College, Pavoorchatram>,in Hydractive suspension,

< http://www.ustudy.in/node/4059>

5.< Citroën Car Club>,Registered in England and Wales No. 4367258,in technology<Hydractive suspension>,

<http://www.citroencarclub.org.uk/>

6.<How stuff work>,William harris,Under the hood,in review How car suspension work,

<http://auto.howstuffworks.com/car-suspension.htm>

7.<Hydractive suspension system in comparison>PDF,review in operating principle page 88-97,

<http://cx.podolsk.ru/xm/docum/Hydractive2.pdf>

8.<Semi active suspension>,1998-2011 by Mark Wan,review in Hydractive suspension,

<http://www.autozine.org/technical_school/suspension/tech_suspension3.htm>

9.<Stephen Hawking,Popular science,publish by Times Mirror Magazine,August 1989,page 15,review in thinking suspension,

<http://books.google.com.my/books?id=vAAAAAAAMBAJ&pg=PA15&dq=hydractive+suspension&hl=en&sa=X&ei=_jiJT7XQJ8OsrAfBntzeCw&ved=0CDwQ6AEwAQ#v=onepage&q=hydractive%20suspension&f=false>

10.<Scott Memmer, Suspension III: Active Suspension Systems, Published: 12/11/2000, Updated: 05/12/2009,

<http://www.edmunds.com/car-technology/suspension-iii-active-suspension-systems.html?articleid=43853>