Vouchers to be maintained

The format can be downloaded from invoicing act. 

Partnership Firm is carried out Its business as per the Indian partnership Act 1932 . check in the Act , or normally firm prepare following types of vouchers according to the business of partnership Firm.,
  
1)Internal voucher
a) Debit voucher

2)External Voucher
a) Debit voucher
b) Credit Voucher

3) Journal Voucher
4) Cash Voucher
5) pretty Cash voucher
6) Bank Voucher etc.

Above are physical from of vouchers.

Sales voucher, receivables or payables can also be added. If this was your query, everyone, I presume has these general ledgers. ERP terminology is different. You call them vouchers, an unknown terminology 

If you are working in Tally ERP/ prime, you can take print out of

Cash payment voucher
Cash receipt Voucher
Bank receipt Voucher
Bank payment Vouchers
Journal Vouchers
Sales Voucher
Purchase Voucher
Other Optional Vouchers . Etc.

All the Vouchers must be  signed , authorized by  the proper officer ,

Good information. Tally is a good software and I like it because there are double entries. Other softwares are like filling in the forms. However, every software has its benefits

All  Vouchers must  be signed and  Authorized  by the Proper officers , along  with the documentary  evidence .   

This is because no one believes a CA after LIBOR scandal perpetually