Amateur 3exam

At first, I would take a Grade 4 examination of ham radio, but I heard that there was little difference of difficulty between Grade 4 and 3. So I actually looked in the textbook, and I felt I was able to pass the Grade 3 examination if I studied steadily. Then I decided to try it.
I studied with "Selected 330 Examples" and "Intensive Seminar" (each of them is from Tokyo Denki University Press).

I was going to take an examination in April 2020, but novel coronavirus was spreading... I just hope the examination will take place again.