Utami, Afifah Raudhatul, and Firman Firman. “Brand Extension Wardah: The Influence of Brand Image and Environmental Concern”. Journal of Management and Administration Provision 6, no. 2 (July 20, 2026): 439-457. Accessed July 25, 2026. https://psppjournals.org/index.php/jmap/article/view/1053.