සවිචාරාත්මක චින්තනය සහ මිනිසාගේ යහ පැවැත්ම – Critical Thinking for the Betterment of Humankind Leave a Comment / All, Media, Videos / By Isuru Hasantha / September 9, 2021 How Mankind has improved their thinking ability and contribute to the world… This video was created By – Isuru Hasantha Script – Dr. Nishantha Nanayakkara