Your best place to find 2018 past papers of principles of commerce 11th class from bise dg khan board. These old up to date papers can be downloaded or viewed online.
Principles of Commerce Past Papers 2018 DG Khan Board
2018 Principles of commerce Past Papers 9th Class BISE DG Khan Board Analysis
Campus.pk gives you unique insight into each past paper about what are the top chapters and topics.
Principles-of-commerce Past Papers 9th Class BISE DG Khan Board