Saluran Youtube Seperti Welter teaching - chimie et cristallographie


3,390,000 1.13%

1,150,000 3.93%

46,200 2.04%

11,100 1.39%

22,300 3.65%



5,290 1.13%

20,400 3.54%

355,000 3.21%

1,540,000 2.64%

10,500,000 3.02%

5,810 1.07%

33,700 1.95%

11,300 3.74%

13,700 4.16%

60,500 4.47%


5,020 1.58%

14,200 0.84%

557,000 2.14%

436,000 3.28%


1,540,000 0.62%

760,000 1.68%