Fadhlurrohman, Muhammad Surya, et al. “Technical and Financial Feasibility of Aromatherapy Pillow (Talophy) Production: A Sheep Wool Waste Utilization Venture”. Business Review and Case Studies, vol. 4, no. 3, Dec. 2023, p. 260, https://doi.org/10.17358/brcs.4.3.260.