Widyaningrum EDA, Cahyono H. Sektor Basis Kabupaten Ngawi Berbasis Sistem Informasi Geografis. Indep.: J. Econ. [Internet]. 2021 Apr. 30 [cited 2025 Nov. 24];1(1):1-13. Available from: https://ejournal.unesa.ac.id/index.php/independent/article/view/37446