Даньків, Й.Я. and Остап’юк, М.Я. 2015. Middle Ages Account Books (Books and Records of the Famous Italian Medici Bank and Other Trade and Banking Companies). Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry). 2, 12 (Sep. 2015), 91–96.