ការតាំងពិពណ៌ថ្មីបង្ហាញពីអំណាចនៃសារព័ត៌មាននៅក្នុងបដិវត្តន៍អាមេរិក

When America declared its independence from Britain in 1776, colonists learned about the ground-breaking news through newspapers. VOA Khmer's Cheoung Pochin narrates.