Nissan Almer's rear gate shock absorbers

Hi, the Nissan Almera Tino 2.2 rear gate shock absorbers do not work.
The gate weighs a lot and I have to carry the purchase in the seats.
Do you know what a reference they have? How do they change? Where can I buy them?
Do you know where I can get the Nissan Almera Tino 2.2 spare class catalog to see the reference of the pieces?
Thank you very much