1. Alcarez A (1966) Taal Volcano: an enigma? Thirteenth Annual Report -Fiscal Year 1965?1966, Commission on Volcanology, National Research Council, University of the Philippines, Quezon City
2. Allen CC (1980) Icelandic subglacial volcanism: thermal and physical studies. J Geol 88: 108?117
3. Andal GA, Aguila LG (1977) Prognostic criteria of the 1976 eruption of Taal Volcano. The COMVOL Letter 9, Nos. 1 and 2: 1?6 (published by The Philippine Commission on Volcanology)
4. Andal GA, Villalva EB, Aguila LG (1976) Surveillance techniques employed in Taal Volcano and their significance to prognostication. The COMVOL Letter 8, No. 4: 1?6 (published by The Philippine Commission on Volcanology)
5. Anon E (1970) The 1969 eruption of Taal Volcano, Parts 1 and 2. The COMVOL Letter 4, No. 2: 1?4 and No. 3: 1?4 (published by The Philippine Commission on Volcanology)