[Mavje]

Hello, I'm totally new to both referee's and this forum's community. I have been a referee for 6 months only and had my 'pitch' debut a few weeks ago. I'd really like to improve as I'm quite sure I made a lot of mistakes , especially about calling fouls. Here's my question then : are there any materials (video,books,casebooks) accessible for free? which might help with interpreting whether to call a foul or not? (I should add that I live in Poland so we 'use' FIBA's rules but a foul is a foul and I doubt it has different meaning in the other rules)