قنوات يوتيوب مثل Centrum Nauki Kopernik





3,390,000 1.13%

2,690,000 3.59%

437,000 3.37%

2,100,000 2.28%

3,210,000 2.78%

2,560,000 3.55%

8,950 3.61%

23,200 3.3%

156,000 3.98%

44,400 7.67%

44,000 2.04%

551,000 4.57%

138,000 1.17%

9,470,000 2.63%

1,020,000 3.13%

524,000 2.7%


835,000 2.77%