Your best place to find 2017 past papers of principles of accounting 12th class from bise sahiwal board. These old up to date papers can be downloaded or viewed online.
Principles of Accounting Past Papers 2017 Sahiwal Board
2017 Principles of accounting Past Papers 9th Class BISE Sahiwal Board Analysis
Campus.pk gives you unique insight into each past paper about what are the top chapters and topics.
Principles-of-accounting Past Papers 9th Class BISE Sahiwal Board