ROCHMANIAH, Ainur; DHARMA, Ferry Adhi; UTOMO, Djarot Meidi Budi. Buku Ajar Dasar-dasar Public Relations. Umsida Press, [S. l.], p. 1–63, 2022. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-6292-23-5. Acesso em: 26 jun. 2025.