The Philippine Claim to Sabah: Legal Aspects, by Attorney-at-Law Ethelwood E. Fernandez
Historical Aspects of the Philippine Claim to Sabah, by Mr. Armando D. Manalo
Historia de la Pirateria Malayo Mahometana en Mindanao, Jolo y Borneo, Vol. II, p.568, by Jose Monetro y Vidal.
Political and Historcial Notes on the Old Sulu Sultanate, Philippine Historical Review, Vol. 1, No. 1, by Cesar Adib Majul, University of the Phillipines.
Grant by the Sultan of Sulu of a Permanent Lease governing His Lands and Territories on the Island of Borneo, dated January 22, 1878, Philippine Claim to North Borneo, Manila Bureau of Printing 1964.
Early British Pioneers in Borneo, The Sarawak Museum Journal, Vol. 6, December 1955, p.446, by Vincent T. Harlow
The State of North Borneo, 1881-1946, The Far Eastern Quarterly, Vol.7 No.1, December 1947, p. 45, by George Mct. Kahin.
The Partition of Brunei, Journal of Tropical Geography, University of Malaya, Vol. II, April 1958, p. 87
The History of Sulu, Manila Bureau of Printing, 1908, p. 164, by Najeeb MitryHistoria de Mindanao y Jolo,Madrid 1907, new edition by W.E. Retana
A Voyage to New Guinea, and the Moluccas from Balambangan including an account of Magindanao, Sooloo and the other Islands, London 1779.
Narrative of the United States Exploring Expedition during the years 1838-1848, Volume V, New York, 1856
Report of the Philippine Commission 1903, Part 1 (Washington: 1904) p. 499 and p. 517 – Report of General Wood as to the abrogation of the Bates Treaty, December 16, 1903.
The Origins of British Borneo, (1970), by Leigh R. Wright
Sulu & Sabah: A Study of British Policy Towards The Philippines & North Borneo from the late 18th century, (1978), by Nicholas Tarling
Threatened Paradise: North Borneo & Its Peoples, (1966), by Cyril Alliston
The North Borneo Chartered Company’s administration of the Bajau, 1878-1909: The Pacification of a Maritime, Nomadic People, (1971), by James Francis Warren
Modernization in East Malaysia 1960-1970, (1972), by James B. Ongkili
History of Modern Sabah 1881-1963: “Under Chartered Company Rule” (1958), by K. G. Treggoning, former Raffles Professor of History, University of Singapore
Professor Rolando N. Quintos: United Nations Paper on Proprietary Rights of the heirs of the Sultan of Sulu