von Lam C V D•
Hardly any teaching
von Anwar d a•
von Sock L C•
Some of the reading materials are no longer available or not relevant
von Alizée C•
Really poorly done. The videos are a quick fix before sending you to wikipedia links, and the quizz are graded wrongly. I do not recommend. That's too bad...
von Gaurav G•
It is more like reading various links to get the basic information. I don't see much value in having videos or even having a test.