na JATIM-06090000035903 20090625132643.0 ind 979-846-91-100-4 0010-060900000035903 0 CB-D13/2001-168 Lulu Hasanah 0 Pandai Berhitung. Surabaya Widyantara 2001 24 hlm.; 23 cm. 0 0 1 0