Haryanti, E. .-. “Analysis of the Agropolitan Area Development in the Sumber Sub-District, Probolinggo Regency in 2020”. JURNAL AGRI-TEK : Jurnal Penelitian Ilmu-Ilmu Eksakta, vol. 22, no. 2, Dec. 2021, pp. 66-72, doi:10.33319/agtek.v22i2.76.