Articles (especially in multivariable calculus)

I love the Khan multivariable calc articles--they are one of the best resources out there on the topics. I want to print them out and put them in a folder for example, but because they are not in the same place (they are quite spread out), it's very difficult. Is it possible that someone could put all the articles in an online book OR a specific folder on khanacademy OR a downloadable pdf?