Your best place to find 2018 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 2018 Sahiwal Board
2018 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