Which is not a primary source of tax law?
A)Notice 89-99, 1989-2 C.B.422.
B)Estate of Harry Holmes v.Comm., 326 U.S.480 (1946).
C)Rev.Rul.79-353, 1979-2 C.B.325.
D)Prop.Reg.§ 1.752-4T(f).
E)All of these are primary sources.

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The Answer of Which is not a primary source of tax law?
A)Notice 89-99, 1989-2 C.B.422.
B)Estate of Harry Holmes v.Comm., 326 U.S.480 (1946).
C)Rev.Rul.79-353, 1979-2 C.B.325.
D)Prop.Reg.§ 1.752-4T(f).
E)All of these are primary sources.

Which Is Not a Primary Source of Tax Law