00000nam 2200000 4500 INLIS000000000007429 20130612095430 ***********************************Ind** 010-061300000007429 Ind 513 513, Nas b NASRULLAH Berhitung sambil bergembira, Nasrullah. -- 1986 Bandung iv, 115 hlm., ilus, 21 cm Hitung - Ilmu