Apayao in focus its demographics and socio-economic profile - United Nations Population Fund; Bautista, Rosalinda P. (Manila National Statistics Office, 1999)
A research study funded by the UNFPA-NSO Project PHI/96/PO1: Strengthening the NSO in Providing Data for Local Planning and Development.
Keywords: Apayao -- Economic conditions; Apayao -- Population -- Statistics; Apayao -- Social conditions