na INLIS000000000461415 ind 0010-0922000402 Buku Referensi Seri Ensiklopedia IPA Chemistry Matters Volume 7 Nonmetals Allan B. Cobb Cobb, Allan B. Bandung Pakar Raya 2008 80 Hlm 978 979 534 521 3 530 COB b 530 04451/PJAT2/B/VIII/18