No will or revocation is valid unless executed either according to the provisions of this article, or according to the law of the place in which it was made, or in which the testator was at the time domiciled.
Okla. Stat. tit. 84, § 72
Law must be followed in execution or revocation
R.L.1910, § 8352.
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.