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Central and East European economies in transition : the international dimension
Köves, András, (1992)
Ikonomika na Bălgarija
Popov, Nikola G., (1989)
OECD economic surveys / Bulgaria
(1997)
Chiljada i trista godini ot sǔzdavaneto na bǔlgarska dǔržava
Angelov, Dimitǔr, (1981)
Naučnoto delo na akademik Ivan Snegarov
Angelov, Dimitǔr, (1964)
Srednovekovna Bǔlgarija <Borbi i posti ženija>
Angelov, Dimitǔr, (1980)