na NUTBA000000000006297 20141201095605.0 978-602-8382-02-1 0010-121400000000021 NBPDMAT 507.24 507.24 Kri p Percobaaj terhadap cahaya / A. Krisna Slamet Jakarta : Mega Jaya, 2011 iv, 76 hlm. : ilus. ; 22 cm. Sains eksperimen