NEW INTERPRETATION ON MAGMATIC BELTS EVOLUTION DURING THE NEOGENE-QUATERNARY PERIODS AS REVEALED FROM NEWLY COLLECTED K-AR AGES FROM CENTRAL-EAST JAVA, INDONESIA - , Akmaluddin , D. Lucas Setijadji , Koichiro Watanabe , Tetsumaru ([Yogyakarta] : HAGI-IAGI-PERHAPI, 2005)