na JATIM-06090000035904 20090625132643.0 ind 979-8491-101-2 0010-060900000035904 0 CB-D13/2001-169 Lulu Hasanah 0 Pandai Berhitung. Surabaya Widyantara 2001 24 hlm,; 23 cm. 0 0 1 0