Map of the results of the 1989 Autonomous Region in Muslim Mindanao creation plebiscite
This file was derived from: PH Administrative Map.svg: 
Republic Act No. 6734 - Only Sulu, Tawi-Tawi, Lanao del Sur (except Marawi), and Maguindanao have noted to have approved the Organic Act
File:PH Administrative Map.svg: Dakilang Isagani
derivative work: Hariboneagle927