na INLIS000000000487837 20230210090149 0010-0223000713 ta 230210 c 1 ind 979-3289-42-2 004 Gat S 004 Gat S Gatot Santoso Sitem Selular CDMA / Gatot Santoso Yogyakarta : Graha Ilmu, 2004 248 : Ilus ; 21