“Implementasi Kebijakan Penyaluran Pupuk Bersubsidi Melalui Program Kartu Tani (Studi Kasus Pada Petani Nanas Di Desa Siwarak Kecamatan Karangreja Kabupaten Purbalinga Jawa Tengah): Implementation of Subsidized Fertilizer Distribution Policy Through Farmer Card Program”. Journal of Political Issues 3, no. 2 (Januari 31, 2022): 98–106. Diakses Juni 13, 2026. https://jpi.ilmupolitik.ubb.ac.id/index.php/JPI/article/view/68.