na INLIS000000000000336 20220421104803 0010-0322000335 220421 1 ind Belajar sains itu menyenangkan / Andrian Andrian 1 Jakarta : Ganeca Exact, 2006 97 hlm. ; 21 cm. 9797444767 500 AND b 500 Sains 21001594 21001671 21003227