na YOGYA-02090000045132 20161117124658.0 ind 979-756-168-6 010-020900000045132 515.5 DEP 515.5 Wal P S.B. WALUYA Persamaan diferensial S.B. Waluya Ed. 1 Yogyakarta Graha Ilmu 2006 viii, 194 hlm 24 cm Persamaan diferensial YOPDYOG CB-D.11/2006-467