There is a stickied post in this forum with my notes, but I did not study Astrophysics as the option. All I could recommend is the resources, or perhaps Premium Resources (although that requires payment, and is entirely your choice)
There is a stickied post in this forum with my notes, but I did not study Astrophysics as the option. All I could recommend is the resources, or perhaps Premium Resources (although that requires payment, and is entirely your choice)