I am looking for books in the Benoni where this sequence of moves is played, so:
1.d4 Nf6 2.c4 c5 3.d5 e6 4. Nc3 exd5 5. cxd5 d6
And black's plan after that is g6.
Also if possible that it can be electronically downloaded/bought.
Depending on what you are looking for, there are a few interesting books. If you are looking for a book to start to learn the opening, I suggest you take a look at:
In such case, you may also want to round up your repertoire with the companion book:
Which provides a more complete coverage of some similar lines (but not exactly the same, although some intersection is inevitable) that are not exactly achieved through the main move order.
If you already know how to play or what you want to play and are looking only for ideas, then the Dangerous Weapons book is definitely what you may want to check:
Last but not least, if you are already a well versed player on the Modern Benoni and just want to keep up with some theoretical developments in the last years, and what trends are being followed, I strongly suggest the book:
I obviously have not fully read them all. I have read a couple of chapters of the first three books, and the last one comes from my experience with the series as a whole.
Grandmaster Repertoire: The Modern Benoni by Marian Petrov comes highly recommended, ideas are explained and there are many variations to choose from, as is charateristic of the GM repertoire series.