R. Kurniawan, I. Anas, R. Widyastuti, and A. Sutandi, “Substitution of Inorganic Fertilizer In SRI Paddy Cultivation Effect on Growth, Production and Soil Organisms: Substitusi Pupuk Kimia pada Budidaya Padi SRI Pengaruhnya Terhadap Pertumbuhan, Produksi dan Organisme Tanah”, J. Il. Tan. Lingk., vol. 19, no. 1, pp. 46–50, Mar. 2019, doi: 10.29244/jitl.19.1.46-50.