Here are all the payments in the journal « Petite Caisse - Francine Maltais ». 

Impossible to see the purchase invoice number associated with each payment. 

Could you guide me please?

UPDATE #1

No trace of the invoice number in :

account.move

account.voucher

UPDATE #2

Too bad, it is for version 7 : https://www.odoo.com/apps/modules/7.0/account_voucher_supplier_invoice_number/

How could I do the same with odoo 8?