| CADATAL, MACARIO D. co-author | (A Glossary of Agricultural Terms in the Cordillera 2005) PDF 50 pages |
| CALATAN, ROSE co-author | (Ibaloi Conversations on Identity, Community, and Well-Being) PDF 93 pages |
| CARINO, JILL co-author | (Ibaloi Conversations on Identity, Community, and Well-Being) PDF 93 pages |
| CELINO, SONIA M. | (Death and Burial Rituals and Other Practices and Beliefs of the Cordillerans) PDF 139 pages |
| COLTING, LITA M. co-author | (A Glossary of Agricultural Terms in the Cordillera 2005) PDF 50 pages |
| Calagan, P. A. | (The indigenous legal system among the Barlig people of Eastern Mountain Province) PDF 4 pages |
| Cawaon, N. B. | (Crime and punishment as depicted in Cordillera tales) PDF 3 pages |