Maghfiroh L, Agustini R. PENGARUH KONSENTRASI ONGGOK INDUSTRI TAPIOKA DAN UREA PADA PRODUKSI BIOHIDROGEN MELALUI FERMENTASI GELAP (INFLUENCE OF CONCENTRATION ONGGOK TAPIOCA INDUSTRY AND UREA IN BIOHYDROGEN PRODUCTION THROUGH DARK FERMENTATION). UJC [Internet]. 2013 Sep. 25 [cited 2025 Nov. 7];2(3). Available from: https://ejournal.unesa.ac.id/index.php/unesa-journal-of-chemistry/article/view/4525