Complex sentence: The Constitution also sets out methods for its own amendment by the request of either the People's Assembly or the President, both of which have to be subjected to a public referendum, after being voted for by at least two-thirds of the Assembly.
Split into simpler sentences: The Constitution also sets out methods for its own amendment by the request of either the People's Assembly or the President's. Both of which have to be subjected to a public referendum, after being voted for by at least two-thirds of the Assembly.