<https://www.profitbooks.net/how-to-create-proforma-invoice-in-profitbooks-accounting-software/#webpage>
<http://schema.org/description>
"Learn what is a proforma invoice and where it is used. This article explains how to create proforma invoice easily using ProfitBooks accounting software."
<http://www.profitbooks.net/how-to-create-proforma-invoice-in-profitbooks-accounting-software/>