The use of lahar carbon paste electrode in the voltammetric determination of cadmium(II) and mercury(II) - Abueva, Celine G.; Balahibo, Bonna F.; Barcena, Maria S.; Sesante, Ace Christian G.; Mojica, Elmer-Rico; Valenzuela, Jesus Felix (Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress, 2005)