Tangunan DN, Peleo-Alampay AM.  2018.  Late Pleistocene to Holocene productivity changes in the western equatorial Pacific (Sulu Sea, Philippines) from calcareous nannofossils. Marine Micropaleontology. 143:1-11.

Cohen A.L, Hart S.R.  2004.  Deglacial sea surface temperatures of the western tropical Pacific: A new look at old coral. Paleoceanography. 19(4)