na YOGYA-02090000052099 20090227032905.0 ind 979-420-013-1 010-020900000052099 420 420 Jok E JOKO SUMITRO English for Science and technologi Djoko Sumitro Yogyakarta Gadjah Mada University Press 1990 viii, 174 hlm ilus 21 cm Bahasa Inggris YOPDYOG 3 PKL] 94P0051352 6a97P0091450 2000P01810