Setyawan, O., N. Renaldo, S. Suhardjo, G. Tendra, K. Veronica, A. T. Junaedi, and A. R. Tanjung. “Economic Feasibility of Nutrient-Rich Fertilizer Derived from Solid and Empty Fruit Bunches of Oil Palm”. Luxury: Landscape of Business Administration, vol. 3, no. 2, July 2025, pp. 54-63, doi:10.61230/luxury.v3i2.126.