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...Vol no pp p issn e http ejournal umm ac id index php jpbi received revised jurnal pendidikan biologi indonesia accepted developing of environmental education textbook based on local potencies silfia ilma and fitri wijarini department biology university borneo tarakan corresponding mail ilmasilfia gmail com abstract subject aims to form students who have the character maintain environment one effort achieve objectives is this research was aimed produce development using borg gall model study uses only five stages namely need analysis planning develop preliminary product field testing main revision due time constraints cost results that has been done a suitable for use in semester collage level keywords ftte muhammadiyah malang...