I'm Ruru Hoong, an undergraduate student at Stanford University that created this website whilst in my final year of my IB Diploma at SJI International (Singapore).
I had set up this site to help my own revision, as well as yours. Bear with me as I'm still in the midst of uploading and updating. These notes have been compiled by myself from my textbooks, online resources, and from kind friends that have been so helpful as to send me their notes to upload :)
If you have any notes that you would like to submit/upload, please drop me a comment or email!