na YOGYA-02090000032525 20090227024706.0 ind 010-020900000032525 600 Sah P SAHAL, Devandra Patterns of technological innovation Devandra Sahal London Addison-Wesley Publishing Company 1981 xv, 381 hlm ilus 23 cm Bibliografi : hlm. 356-376 Teknologi YOPDYOG(B) 24-12-06 1 06A0017665