Lista de monarcas da Bulgária (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Lista de monarcas da Bulgária" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

2books.google.com

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books.google.com

Seaby's Coin and Medal Bulletin (em inglês). Londres: B.A. Seaby Limited. 1963. p. 226
Jones, Prudence; Pennick, Nigel (2013). A History of Pagan Europe (em inglês). Abingdon-on-Thames: Routledge. p. 191