The Palawan (Ira-an, Palawano, Palawanon, Paluanes, Palawanin) are located mainly in the interior of the island of Palawan in the southern Philippines. Palawan is the fifth-largest Philippine island and also the least-heavily populated of the larger islands. It stretches from 8° 20′ N to 11° 30′ N, running northeastward, and is nowhere more than 40 kilometers wide. The number of Palawan people is estimated at about 70,000. About 10 percent are Muslims (mainly those living along the coast) and the rest of the people practice their traditional religion. The Palawan cultivate upland rice. They build their homes in the fields and make sure that they are out of sight of their neighbors.
Warren, Charles P. (1964). The Batak of Palawan: A Culture in Transition. Philippine Studies Program, Research Series, no. 3. Chicago: University of Chicago.