I believe that God can do anything, and that He probably has communicated through the Bible, and the Torah, the Quran, and many other writings, both religious and not, and in many other ways, I don't know about or understand.
I would agree that God communicates in many ways.I would question the Quran because it has a totally different message than the Bible or Torah.Why have you decided the Bible is just a book? Have you examined it? (read some of it)
Considering all the manuscripts that date back 2000 years or more the Bible has been preserved more completely and accurately than any other.The oldest manuscript from Aristotle only dates to about the 10th century.No archaeological discovery has ever contradicted the Bible.