Frost, J.E., 1959, Notes on the genesis of the ore-bearing structures of the Paracale district, Camarines Norte, Philippines: Geological Society of the Philippines Journal, v. 13, no. 2, p. 3143. (Abstract also available at http://www.geolsocphil.org/journal_abstracts/1959v13n2jun_1abs.htm.)Mitchell, A.H.G, and Leach, T.M., 1991, Epithermal gold in the PhilippinesIsland arc metallogenesis, geothermal systems and geology: London, Academic Press, 457 p.
Sillitoe, R.H., and Gappe, I.M., Jr., 1984, Philippine porphyry copper depositsGeologic setting and characteristics: Committee for Co-ordination of Joint Prospecting for Mineral Resources in Asian Offshore Areas (CCOP), CCOP Technical Publication 14, 89 p.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the worldDatabase and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.Uriarte, H.M., 1972, Base metal exploration in Larap, Jose Panganiban and vicinity: Geological Society of the Philippines Journal, v. 26, no. 1, p. 3749. (Abstract also available at http://www.geolsocphil.org/journal_abstracts/1972v26n1mar_2abs.htm.)