Help with Books for NAV CPL DGCA
So I've just started self-studying for my first attempt on NAV exam. Got the keith williams for the same, but it has 2 parts i.e 1000 questions for General Navigation and 1000 questions for Radio Navigation. Im certain about the General Navigation. But for the ,CPL Exam for Navigation do I need to go through th Radio Navigation too? And other than these books is there any other book that you would recommend. Thanks a ton.