TUESTA, RONALD PUERTA, DORIS ESENARRO, CESAR MINGA, CIRO RODRIGUEZ, and CARMEN AYLAS. “Open-Access Geographic Sources And Data For The Study And Management Of Natural Resources”. The journal of contemporary issues in business and government 27, no. 3 (June 30, 2021): 849–857. Accessed August 3, 2024. https://cibgp.com/au/index.php/1323-6903/article/view/1676.