18:25

المحاضرة السابعة عشر (عضوية)

9:29

المحاضرة السادسة عشر(عضوية)

27:58

Naming Every Organic Functional Group Using IUPAC Conventions // HSC Chemistry

26:12

How to Remember Everything You Read

1:49:55

How To Speak Fluently In English About Almost Anything

45:35

Alice Weidel spricht Klartext in Hamburger Rathaus

36:48

Enzyme Chemistry part (1) - Moaz Wahdan

17:38

المحاضرة الثامنة عشر (عضوية)