na INLIS000000000010284 20231202142244 231202||||||||| | ||| |||| || | 979-407-296-6 010-1223010284 id 081 081 Ind l Indonesia. Depdikbud Lomba penelitian ilmiah remaja 1989 Cet.1 Jakarta Balai Pustaka 1991 138 hlm. : ilus. ; 21 cm. R01.40 - R01-1465 Karya Tulis Remaja