The National Assembly shall decide upon the proposed amendments within sixty days of the public announcement, and passage by the National Assembly shall require the concurrent vote of two thirds or more of the total members of the National Assembly.
(2) The proposed amendments to the Constitution shall be submitted to a national referendum not later than thirty days after passage by the National Assembly, and shall be determined by more than one half of all votes cast by more than one half of voters eligible to vote in elections for members of the National Assembly.
(3) When the proposed amendments to the Constitution receive the concurrence prescribed in paragraph (2), the amendments to the Constitution shall be finalized, and the President shall promulgate it without delay.