Loading book image Maktab matematika darslarida o'rganiladigan matinli masalalarni yechish moduli G.B. Quzmanova, F.S. Aktamov
Loading book image 2-METIL-3(H)-6-Nitroxinazolin-4-onning olinisg jarayonida olingan nitralovchi aralashmasi ishtrokida nks va npks gumat o'g'itlarini olinish texnologiyasi O. Ziyadullayev M.E. G‘aniyev