Calucag, Ruben
Crudo, Rogelio S.
Cusi, Manolita M.
Cusi, Sonia A. M.
Lactaotao, Roberto C.
Mañalac, Emmanuel H.
Olympia, Ricardo L.
Test 1
National Institute of Geological Sciences, Diliman, Q.C. Philippines
secretariat.upgaa@gmail.com
(632) 8 924-2485