Loading book image Ikkinchi tartibli chiziqli xususiy hosilali defferensial tenglamalarni tipini aniqlash T.A. Qobilov.
Loading book image ho'xat urug'larining unib chiqishiga F.OXYSPORUM F.SP.CICERIS zamburug'ining ta'siri
Loading book image Terminal spirtlari va benzolxlorid asosida intrnal atsetilen spirtlari sintezi O.E. Ziyadullayev