Optimization of PR effects and features of the development of the advertising market of Kazakhstan. Herald of Journalism, [S. l.], v. 55, n. 1, p. 43–53, 2020. DOI: 10.26577/HJ.2020.v55.i1.05. Disponível em: https://bulletin-journalism.kaznu.kz/index.php/1-journal/article/view/1150. Acesso em: 5 jul. 2026.