MARUPOVNA, U. N. . Characteristics of Book Trade. International Journal on Integrated Education, [S. l.], v. 4, n. 10, p. 147–149, 2021. DOI: 10.31149/ijie.v4i10.2299. Disponível em: https://journals.researchparks.org/index.php/IJIE/article/view/2299. Acesso em: 20 sep. 2026.