Hubert-herald.nl: Bulgaria- "After the abolition of the Peoples’ Republic in 1990 a provisional emblem came into use which was about the same as before but from which the socialist star and the data were removed." نسخة محفوظة 21 أبريل 2017 على موقع واي باك مشين.
protobulgarians.com
Voynikov, Ivan. "Chapter II". History of the Bulgarian State Symbols (بالبلغارية). Archived from the original on 2016-06-16. Retrieved 2017-12-24.
Voynikov, Ivan. "Chapter III, part 2". History of the Bulgarian State Symbols (بالبلغارية). Archived from the original on 2008-07-20. Retrieved 2017-12-24.
web.archive.org
Voynikov, Ivan. "Chapter II". History of the Bulgarian State Symbols (بالبلغارية). Archived from the original on 2016-06-16. Retrieved 2017-12-24.
Hubert-herald.nl: Bulgaria- "After the abolition of the Peoples’ Republic in 1990 a provisional emblem came into use which was about the same as before but from which the socialist star and the data were removed." نسخة محفوظة 21 أبريل 2017 على موقع واي باك مشين.
Voynikov, Ivan. "Chapter III, part 2". History of the Bulgarian State Symbols (بالبلغارية). Archived from the original on 2008-07-20. Retrieved 2017-12-24.