i'm taking a travel & tourism exam in may/june but i can't afford a textbook

does anyone know any good sources i can get notes from? or any videos or literally anything to help me get more info on the topics. my teacher gave me a virtual book of basic questions that he worte himself but its full of typos n shit i cant understand lol. all help appreciated <3

it's o-level t&t btw. idk if that matters though lol