na INLIS000000000582438 20251204013133 0010-1225000433 Mantra Pemantapan Materi & Asesmen OSN : Olimpiade Sains Nasional IPA SMP/MTs Asri Widowati dan Arina Zaida Ilma 418 ; 19 x 26 cm Jakarta : PT Gramedia Jakarta, 2025 500.7 500.7 ASR m 978-623-8518-85-2