00000nam 2200000 4500 NUTBA000000000006348 20141204143338.0 779-9926-54-8 0010-121400000000072 NBPDMAT 507.6 507.6 Ret a Retna Masita Asyiknya bereksperimen 2 / Retna Masita Surabaya : Sic, 2011 iv, 52 hlm. : ilus. ; 25 cm. Sains-Elsperimen