Stefanov, S. (2006). 110 years NAA: Exhibition of the works by the teaching staff of the National Academy of Art in Sofia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStefanov, Svilen. 110 Years NAA: Exhibition of the Works by the Teaching Staff of the National Academy of Art in Sofia. Sofia, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStefanov, Svilen. 110 Years NAA: Exhibition of the Works by the Teaching Staff of the National Academy of Art in Sofia. 2006.
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