1. Bautista, J.A., 1958. Bohol's oldest church still intact after 363 years. Manila Times, July 18.
2. Holocene relative sea-level changes, mangrove response in southwest Bohol, Philippines;Berdin;Journal of Coastal Research,2003
3. Besana, G.M., Daligdig, J.A., Ando, M., Punongbayan, R.S., 1998. Overview of the geotectonic framework of the Philippine region. In: Ando, M. (Ed.), Research for the Volcanic and Seismic Acitivity in Luzon for 1995–1996. Disaster Prevention Research Institute, Kyoto University, pp. 143–170.
4. Bureau of Mines and Geo-Sciences (BMG), 1987. 1:50,000 Geologic map of Tagbilaran Quadrangle, Sheet 3748 IV. Bureau of Mines and Geology, Manila.
5. Oxygen isotopes and sea level;Chappell;Nature,1986