https://psebsolutions.com/pseb-6th-class-social-science-solutions-chapter-16-in-punjabi/
PSEB 6th Class Social Science Solutions Chapter 16 ਹਰਸ਼ਵਰਧਨ ਦਾ ਕਾਲ (600 ਈ: ਤੋਂ 650 ਈ:)