na YOGYA-02090000014825 20090227022449.0 ind 979-421-070-6 010-020900000014825 YOPDYOG 330.1543 330.1543 Ass M ASSAURI, Sofyan Matematika ekonomi Sofyan Assauri Ed.2, cet.14 Jakarta Rajawali Press 1992 xiii, 304 hlm ilus 21 cm Bibliografi : hlm. 303-304 Matematika ekonomi YOPDYOG 94P0048952 94P0048953 95P0056490