Sudirman, Y., S. Waluyo, and W. . “UJI KINERJA PROTOTIPE ALAT PEMBERSIH GABAH”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), vol. 3, no. 1, June 2014, https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/376.