A history of Perak - Winstedt, R. O. ( Richard Olof ), Sir, 1878-1966; Wilkinson, R. J. (Richard James), 1907-1916; Maxwell, W. E. (Kuala Lumpur : Malaysian Branch of the Royal Asiatic Society, 1974)
previously published as volume XII Part 1. Journal of the Malayan Branch of the Royal Asiatic Society in June 1934 and in volumes 2.9 & 12. of the Journalof the Straits Branch of the Royal Asiatic Society in 1878, 1882 and 1883.
Keywords: Perak -- History; Malaysia -- History