Кръстева, Мила. “The Images of Paisii Hilendarski on Bulgarian Postage Stamps. Paissi’s Postage Stamps from the Royal Period”. Slavica Lodziensia 2 (June 5, 2019): 149–162. Accessed December 7, 2025. https://czasopisma.uni.lodz.pl/slav/article/view/4756.