na INLIS000000000000926 20210702073412 0010-0721000001 ta 210702 0 ind 979-420-172-3 631.3 631.3 PRO m Prof. Ir. Gembong Tjitrosoepomo Mesin dan peralatan usaha tani / Gadjah Mada University Press edisi keenam Yogyakarta : Gadjah Mada University Press, 1990 769 Lemari No.5 Buku no. 73 49/Balittan/H/1992