Free and Open Source Invoicing, Expenses & Time-Tracking
Accounting system for smaller companies written in GnuCobol.
Accounting, invoicing, inventory and payroll software for Linux
Small Business Appliance
Vintage Billing and Accounting Software for Small Business
Application for tracking customers, clients, accounts, etc. PHP/MDB2
Mutasyon is a script can add customer, products, inventory or invoice
Software developed for the purposes of czela.net o.s.