California Code
CHAPTER 2 - Secondary Evidence of Writings
ARTICLE 1 - Proof of the Content of a Writing

Section 1520. - 1520. The content of a writing may be proved by...

Section 1521. - 1521. (a) The content of a writing may be proved...

Section 1522. - 1522. (a) In addition to the grounds for exclusion authorized...

Section 1523. - 1523. (a) Except as otherwise provided by statute, oral testimony...