Purwanto, Edi, Abdul Rauf, and Usman Made. 2017. “Uji Pola Jajar Legowo Pada Beberapa Varietas Padi Sawah (Oriza Sativa L.) Budidaya Sri”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal) 5 (6), 653-60. http://103.245.72.23/index.php/agrotekbis/article/view/224.