I'm not sure whether this question about spoken English fits here or not, but it's fully about English language & usage:
As a person from Asia, I think I can read and write English decently, but am much worse at spoken English. And I suppose this has a strong relation with the fact that English is featuring in word stress, tone and intonation. None of these factors is emphasized in Asian languages.
For the sake of clearness, I ask the question in this new paragraph: are there some really good and helpful books/tutorials about these? And how can I effectively improve my English in these aspects?