na INLIS000000000008528 20231202141845 231202||||||||| | ||| |||| || | 979-407-261-3 010-1223008528 id 081 081 Ind l Indonesia. Depdikbud Lomba penelitian ilmiah remaja 1988 Cet.3 Jakarta Balai Pustaka 1993 196 hlm. : ilus. ; 21 cm. R01.40 - R01-1463 Karya Tulis Remaja