ANALISIS STRATEGI KOMUNIKASI PESAN KREATIF BERBASIS RECIPROCITY PRINCIPLE PADA PROMOSI PRODUK DI ERA DIGITAL. IPSSJ [Internet]. 2025 Oct. 18 [cited 2026 Oct. 21];2(05 Oktober):8039-47. Available from: https://ipssj.com/index.php/ojs/article/view/935