Suparmin et al. 2025. The Impact of Fertilizer Subsidy Policies on The Profits and Welfare of Rice Farmers: Lessons from Sumbawa West District. Jurnal Penelitian Pendidikan IPA. 11, 1 (Feb. 2025), 818–827. DOI:https://doi.org/10.29303/jppipa.v11i1.6911.