na INLIS000000000009489 20150925123211 171103||||||||| | ||| |||| ||ind|| 979-3535-08-3 0010-091500000009489 ind 001.01 001.01 Ris e Riskiono Slamet Ensiklopedia IPTEK 7 Jakarta PT. Lentera Abadi 2007 88 hlm,; 29cm