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Ikonomika i planirane na energijnoto stopanstvo v promišlenostta : metodičeski ukazanija
Rajkov, Georgi I. - 1989
Persistent link: https://www.econbiz.de/10000897332
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Gorivno-energijnite resursi - globalen problem na săvremennostta
Dunov, Ivan - 1985
Persistent link: https://www.econbiz.de/10000716692
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Ikonomiko-matematičeski metodi i modeli v tărgovijata : (izsledvane na operaciite) ; učebno răkovodstvo
Dančev, Dančo Ja. - 1990
Persistent link: https://www.econbiz.de/10000830529
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Logikata v ikonomiko-matematičeskoto modelirane
Biljarski, Dimităr S. - 1985
Persistent link: https://www.econbiz.de/10000699188
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Ikonomiko-matematičeski metodi i modeli v tărgovijata : (izsledvane na operaciite)
Aleksandrov, Krum S.; Mladenov, Zdravko S. - 1989
Persistent link: https://www.econbiz.de/10000797075
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Energetika i intenzifikacija
Todoriev, Nikola - 1984
Persistent link: https://www.econbiz.de/10002936556
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Surovinno-energijnite resursi i ikonomičeskata integracija
Pavlov, Petko - 1978
Persistent link: https://www.econbiz.de/10002618956
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Intenzifikacija i materialoemkost na obštestvenoto proizvodstvo
Pechlivanov, Vasil - 1983
Persistent link: https://www.econbiz.de/10002625448