Guntoro, Dwi, ChozinMuhamad Achmad, Edi Santosa, Soekisman Tjitrosemito, and BurhanAbdul Harris. 1. “Kompetisi Antara Ekotipe Echinochloa Crus-Galli Pada Beberapa Tingkat Populasi Dengan Padi Sawah (Competition of Echinochloa Crus-Galli Ecotypes at Several Populations Against Lowland Rice)”. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 37 (3). https://doi.org/10.24831/jai.v37i3.1236.