na INLIS000000000009496 20150925123213 ind 979-3535-01-6 010-091500000009496 ind 525.303 525.303 Ris e Riskiono Slamet Ensiklopedia IPTEK 1 Jakarta PT. Lentera Abadi 2007 96 hlm,; 29cm ENSIKLOPEDIA GERAKAN BUMI 16061/12 16060/12