Are these correct? I have to classify the following examples as either, primary authority, secondary authority or non-authority.

1.An article in the New York Times regarding the issue of abortion.

Non-authority

2.An opinion found in the Bankruptcy Reporter.

Primary authority

3.A notation regarding treatment of an opinion found in Shepards.

Non-authority

4.Headnotes.

Non-authority

5.An opinion from the U.S Supreme Court.

Primary authority

6.An article in the A.L.R.

Secondary authority

7.A digest.

Non-authority

8.A U.S. Constitutional Amendment.

Primary authority

9.The United States Code

Primary authority

10.The Federal Rules of Appellate Procedure.

Primary Authority

11.Dictum.

12.An administrative regulation.

Primary Authority

13.Introduction to Paralegalism by William Statsky.

Non- authority

14.An appellate brief

Secondary authority

15.An opinion found in the Federal Supplement.

Primary authority