L. Cabuena, Narryl, et al. “Indigenous and Community Conserved Areas (ICCA) and the Batak Cultural Minorities of Northern Palawan, Philippines”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 24, no. 7, Dec. 2015, pp. 160-75, https://gssrr.org/JournalOfBasicAndApplied/article/view/4786.