O'zbek tilining izohli lug'ati - G
Неизвестно
Power Plant Engineering
A.K. Raja
Sulfat kislota ishlab chiqarish nazariyasi va texnologik hisoblari
I.T.Shamshidinov
Bilmasvoy quyosh shahrida [@kitoblar_pdf]
Alexander - Fundamentals of Electric Circuits 3e HQ
Charles K. Alexander & Matthew N.O. Sadiku