na INLIS000000000001690 20210430103944 210430||||||||| | ||| |||| || | 9971690632 010-0421001690 en 630.4 630.4 BEE n Ooi Jin Bee Natural resources in tropical countries Cet. 1 Singapura Singapore Universty Press 1983 xxxi, 549 hlm.: ill.; 23 cm. KEHUTANAN