DR. ASHWANI KUMAR GUPTA. THE NITROGEN CYCLE IN THE COURSE OF STUDY RELATED TO THE BIOLOGICAL SCIENCES AT VARIOUS LEVELS. International Education and Research Journal (IERJ), [S. l.], v. 6, n. 11, 2020. Disponível em: http://ierj.in/journal/index.php/ierj/article/view/2184. Acesso em: 9 dec. 2024.