na INLIS000000000007218 20150923094544.0 150923 2011 jkia j ind 602-98724-9-4 010-091500000000113 [22] 507 507 Bay p BAYU, Sapta Hari Percobaan sains sederhana / Bayu Sapta Hari Cet.2. Jakarta : Wadah Ilmu, 2011 vi, 80 hlm. : ilus. ; 25 cm Bibliografi : hlm 79 SAINS-STUDI DAN PENGAJARAN SUPUDES 14.300-14.304/KPAD/DS/2014