@book { BlackMarketExchangeRateUnificationoftheForeignExchangeMarketsandMonetaryPolicy,
    title = "Black Market Exchange Rate, Unification of the Foreign- Exchange Markets and Monetary Policy",
    subtitle = "The Case of El Salvador",
    author = "Nolvia N. {Saca}",
    year = "1997",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1085768"
}