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Discussion of the relationship between economic adjustment and economic contracts
Li, Zhuguo, (1985)
Dăržavno upravlenie i samoupravlenie na stopanskata dejnost : naučnopraktičeska konferencija ; 8 - 9 oktomvri 1987 g.
Račev, Filip, (1988)
Plan i dogovor : materialʹnoe stimulirovanie
Sejnaroev, Beksultan M., (1989)
On contract responsibility
Liang, Huixing, (1985)