Gertrudes C. Cabebe 1994. The Socio-Political and Economics Systems and Concepts of Government and Development Issues of the Tribal Filipinos in the Province of Ilocos Sur. The Vector: International Journal of Emerging Science, Technology and Management (IJESTM). 3, 1 (Dec. 1994). DOI:https://doi.org/10.69566/ijestm.v3i1.94.