Ustiatik, Reni, et al. “Strengthen farmers’ Fertilizer Self-Sufficiency in the Tourist Area With a Reduce-Reuse-Recycle System”. Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang, vol. 9, no. 3, Oct. 2024, pp. 543-54, doi:10.26905/abdimas.v9i3.13059.