Use this list, I got my parents here last year.
list enclosed:
1. invitation letter.
2. copy of landing papers or citizenship card or canadian passport.
3. original or notarized copies of all of the following documents:
i. notice of assessment issued by Revenue Canada.
ii. employment letter showing salary, position and length of
employment.
iii. bank statements showing daily transactions for the past 6 months.
iv. pay records fot the past 6 months.