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Avtomatizirana sistema za upravlenie na narodnoto stopanstvo : Ikonomičeski osnovi
Mateev, Evgeni, (1974)
Programno celevijat podchod v planiraneto i upravlenieto
Popova, V., (1976)
Automated system for national economic management : - Economic principles -
Mateev, Evgeni, (1975)