United States. Central Intelligence Agency CIA World Fact Book, 2004 — Malaysia (2004)

Federation of Malaysia (Malaya, Sabah, Sarawak, and Singapore) formed 9 July 1963 (Singapore left Federation on 9 August 1965) ; nominally headed by paramount ruler and a bicameral Parliament consisting of a nonelected upper house and an elected lower house; all Peninsular Malaysian states have hereditary rulers except Melaka and Penang; those two states along with Sabah and Sarawak in East Malaysia have governors appointed by Malaysian Government; powers of state governments are limited by federal constitution
Source: Wikisource

Commission of Enquiry in North Borneo and Sarawak Regarding Malaysian Federation Report of the Commission of Enquiry… (1962)

We now consider the Federal, State and current legislative responsibili- ties on the basis of the present Constitution of the Federation of Malaya. In order to realise a strong, stable and united Federation and to meet the special circumstances of the entry of the Borneo territories to form the new Federation of Malaysia, we feel that the Central Government should exercise authority in the matters enumerated in the IXth Schedule subject to the follow- ing reservations and comments.
Source: Wikisource

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