Utami, Pujiati. “POLA DISTRJBUSI BENIH PADI BERSUBSIDIDI KABUPATEN PURBALINGGA”. Jurnal Ilmu-Ilmu Pertanian, vol. 7, no. 1, July 2011, pp. 54-60, https://jiip.polbangtanyoma.ac.id/index.php/jiip/article/view/183.