↑"Executive Order No. 36; Providing for the Reorganization of the Administrative Regions in Mindanao and for Other Purposes". Official Gazette of the Republic of the Philippines. Malacañang, Manila, Philippines. September 19, 2001. Diakses tanggal March 29, 2016. SECTION 4. Region XII is hereby reorganized to be known as SOCCSKSARGEN and shall be composed of the following provinces and cities: a. Provinces i. North Cotabato ii. Sarangani iii. South Cotabato iv. Sultan Kudarat b. Cities i. Cotabato City ii. General Santos City iii. Kidapawan City iv. Koronadal City v. Tacurong City
"Southern Mindanao Is Now All Davao Region". RDC XI Bulletin. No.Oct-Dec 2001, Volume 7. National Statistical Coordination Board. January 29, 2002. Diarsipkan dari asli tanggal January 2, 2016. Diakses tanggal March 29, 2016. Southern Mindanao or Region XI is now known as Davao Region and comprises four provinces (Compostela Valley, Davao del Norte, Davao del Sur and Davao Oriental) and five cities (Davao, Digos, Panabo, Tagum and the Island Garden City of Samal. Said provinces and cities are situated along the Davao Gulf area. South Cotabato, Sarangani, General Santos City (SOCSARGEN) and Koronadal City, which were part of the old Region XI) have been transferred to Region XII.
"List of Cities". PSGC Interactive. Makati, Philippines: National Statistical Coordination Board. Diakses tanggal March 20, 2013.
"List of Provinces". PSGC Interactive. Makati, Philippines: National Statistical Coordination Board. Diakses tanggal March 20, 2013.