H. Mamedov, N. Muminov, A. Umarov, A. Ismailov
Z.T.GAIBNAZAROVA SH.A.ISAMUXAMETOV
Jeffrey M. Wooldridge
Fhilip Kotler
I.S.Xotamov va boshqalar
Н.Ш . Кремера
Xolmatov Ne'mat Boymirzayevich, Imomova Nilufar Asomiddinovna
Z.A.Djumayev
