BADIK, Muhammad; GERHANI, Febrina; REDJEKI, Sri. Marketing Strategy Analysis Using WhatsApp Social Media. Golden Ratio of Marketing and Applied Psychology of Business, [S. l.], v. 5, n. 2, p. 592–603, 2025. DOI: 10.52970/grmapb.v5i2.1146. Disponível em: https://www.goldenratio.id/index.php/grmapb/article/view/1146. Acesso em: 20 jun. 2026.