It is been some years since I completed my graduate studies in mathematics at a Spanish university. I remember one of the most pleasant and enriching moments I experienced was when reading Euclid´s Elements. This book taught me how modern maths is written and what classic geometry is all about. Also taught me a new way of thinking about maths.
Since I started learning maths, I have been curious about how maths developed in the Indian and Chinese cultures. This is why I wanted to ask the following question: Is there a book (or collections of books) that have been essential when developing mathematics in the Indian or Chinese cultures (similar to what Euclid´s Elements did in ancient Greece and Europe)?
PS: I have heard that Asians were a very advanced culture when talking about combinatory. Is there any reference for that?